(ROOT (S (NP (NP (DT The) (NNP Leaning) (NNP Tower)) (PP (IN of) (NP (NNP Pisa)))) (VP (VBD was) (ADJP (JJ straight) (IN like) (NP (DT a) (NN pole))) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN construction)) (VP (VBD began) (PP (IN in) (NP (CD 1173))))))) (. .)))
The Leaning Tower of Pisa was straight like a pole when the construction began in 1173.
det
Definite=Def|PronType=Art
the
The
DET
DT
compound
Number=Sing
Leaning
Leaning
PROPN
NNP
nsubj
Number=Sing
Tower
Tower
PROPN
NNP
case
of
of
ADP
IN
nmod
Number=Sing
Pisa
Pisa
PROPN
NNP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Degree=Pos
straight
straight
ADJ
JJ
case
like
like
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl
Number=Sing
pole
pole
NOUN
NN
advmod
PronType=Int
when
when
ADV
WRB
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
construction
construction
NOUN
NN
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
begin
began
VERB
VBD
case
in
in
ADP
IN
obl
NumForm=Digit|NumType=Card
1173
1173
NUM
CD
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP It)) (VP (VBD started) (S (VP (TO to) (VP (VB shift) (NP (NN direction)) (PP (ADVP (RB soon)) (IN after) (NP (NN construction))) (PP (IN because) (IN of) (NP (NP (JJ poor) (NN foundation)) (PP (IN in) (NP (NP (NN addition)) (PP (IN to) (NP (NP (DT the) (JJ loose) (NN layer)) (PP (IN of) (NP (NN subsoil))))))))))))) (. .)))
It started to shift direction soon after construction because of poor foundation in addition to the loose layer of subsoil.
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
It
PRON
PRP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
start
started
VERB
VBD
mark
to
to
PART
TO
xcomp
VerbForm=Inf
shift
shift
VERB
VB
obj
Number=Sing
direction
direction
NOUN
NN
advmod
Degree=Pos
soon
soon
ADV
RB
case
after
after
ADP
IN
obl
Number=Sing
construction
construction
NOUN
NN
case
because
because
ADP
IN
fixed
of
of
ADP
IN
amod
Degree=Pos
poor
poor
ADJ
JJ
obl
Number=Sing
foundation
foundation
NOUN
NN
case
in
in
ADP
IN
obl
Number=Sing
addition
addition
NOUN
NN
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
loose
loose
ADJ
JJ
nmod
Number=Sing
layer
layer
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
subsoil
subsoil
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (PP (IN At) (NP (DT the) (NN beginning))) (, ,) (NP (PRP it)) (VP (VBD leaned) (PP (IN to) (NP (DT the) (NN southeast))) (SBAR (IN before) (S (NP (DT the) (JJ shaky) (NN foundation)) (VP (VBD started) (S (VP (TO to) (VP (VB shift) (S (VP (VBG leaning) (PP (IN towards) (NP (DT the) (NNP southwest)))))))))))) (. .)))
At the beginning, it leaned to the southeast before the shaky foundation started to shift leaning towards the southwest.
case
at
At
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
beginning
beginning
NOUN
NN
punct
,
,
PUNCT
,
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
learn
leaned
VERB
VBD
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
southeast
southeast
NOUN
NN
mark
before
before
SCONJ
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
shaky
shaky
ADJ
JJ
nsubj
Number=Sing
foundation
foundation
NOUN
NN
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
start
started
VERB
VBD
mark
to
to
PART
TO
xcomp
VerbForm=Inf
shift
shift
VERB
VB
advcl
VerbForm=Ger
lean
leaning
VERB
VBG
case
towards
towards
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
southwest
southwest
PROPN
NNP
punct
.
.
PUNCT
.
(ROOT (S (PP (IN After) (NP (NP (DT the) (NN period)) (PP (IN of) (NP (JJ structural) (NN strengthening))) (PP (IN at) (NP (NP (DT the) (NN beginning)) (PP (IN of) (NP (DT the) (NN 21stcentury))))))) (, ,) (ADVP (RB now)) (NP (NP (DT the) (NNP Leaning) (NNP Tower)) (PP (IN of) (NP (NNP Pisa)))) (VP (VBZ leans) (PP (IN at) (NP (NP (DT an) (NN angle)) (PP (IN of) (NP (CD 3.97) (NNS degrees)))))) (. .)))
After the period of structural strengthening at the beginning of the 21stcentury, now the Leaning Tower of Pisa leans at an angle of 3.97 degrees.
case
after
After
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
period
period
NOUN
NN
case
of
of
ADP
IN
amod
Degree=Pos
structural
structural
ADJ
JJ
nmod
Number=Sing
strengthening
strengthening
NOUN
NN
case
at
at
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
beginning
beginning
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
21stcentury
21stcentury
NOUN
NN
punct
,
,
PUNCT
,
advmod
now
now
ADV
RB
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
Leaning
Leaning
PROPN
NNP
nsubj
Number=Sing
Tower
Tower
PROPN
NNP
case
of
of
ADP
IN
nmod
Number=Sing
Pisa
Pisa
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
lean
leans
VERB
VBZ
case
at
at
ADP
IN
det
Definite=Ind|PronType=Art
a
an
DET
DT
obl
Number=Sing
angle
angle
NOUN
NN
case
of
of
ADP
IN
nummod
NumForm=Digit|NumType=Frac
3.97
3.97
NUM
CD
nmod
Number=Plur
degree
degrees
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN In) (NP (CD 1178))) (, ,) (NP (NP (DT the) (NN shift)) (PP (IN in) (NP (NN direction)))) (VP (VBD was) (VP (VBN observed) (PP (IN for) (NP (NP (DT the) (JJ first) (NN time)) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN construction)) (VP (VBD had) (VP (VBN progressed) (ADVP (RBR further)) (PP (IN to) (NP (DT the) (JJ third) (NN floor))))))))))) (. .)))
In 1178, the shift in direction was observed for the first time when the construction had progressed further to the third floor.
case
in
In
ADP
IN
obl
NumForm=Digit|NumType=Card
1178
1178
NUM
CD
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj:pass
Number=Sing
shift
shift
NOUN
NN
case
in
in
ADP
IN
nmod
Number=Sing
direction
direction
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
observe
observed
VERB
VBN
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
first
first
ADJ
JJ
obl
Number=Sing
time
time
NOUN
NN
advmod
PronType=Int
when
when
ADV
WRB
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
construction
construction
NOUN
NN
aux
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
have
had
AUX
VBD
advcl
Tense=Past|VerbForm=Part
progress
progressed
VERB
VBN
advmod
Degree=Cmp
further
further
ADV
RBR
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
third
third
ADJ
JJ
obl
Number=Sing
floor
floor
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (NN tower)) (VP (VBD was) (ADJP (JJ heavy)) (PP (IN for) (NP (NP (DT the) (JJ three-meter) (NN foundation)) (SBAR (WHNP (WDT that)) (S (VP (VBD was) (VP (VBN built) (PP (IN on) (NP (NP (DT a) (JJ weak) (NN area)) (PP (IN of) (NP (NN land)))))))))))) (. .)))
The tower was heavy for the three-meter foundation that was built on a weak area of land.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
tower
tower
NOUN
NN
cop
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Degree=Pos
heavy
heavy
ADJ
JJ
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
three-meter
three-meter
ADJ
JJ
obl
Number=Sing
foundation
foundation
NOUN
NN
nsubj:pass
PronType=Rel
that
that
PRON
WDT
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
acl:relcl
Tense=Past|VerbForm=Part|Voice=Pass
build
built
VERB
VBN
case
on
on
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
weak
weak
ADJ
JJ
obl
Number=Sing
area
area
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
land
land
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN For) (S (VP (VBG compensating) (NP (DT the) (NN leaning) (NN position))))) (, ,) (NP (DT the) (NNS builders)) (VP (VBD started) (S (VP (TO to) (VP (VB construct) (NP (DT the) (JJ upper) (NNS floors)) (PP (IN with) (ADJP (ADJP (NP (CD one) (NN side)) (JJR higher)) (PP (IN than) (NP (DT the) (JJ other) (NN one))))))))) (. .)))
For compensating the leaning position, the builders started to construct the upper floors with one side higher than the other one.
mark
for
For
SCONJ
IN
advcl
VerbForm=Ger
compensate
compensating
VERB
VBG
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
lean
leaning
NOUN
NN
obj
Number=Sing
position
position
NOUN
NN
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
builder
builders
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
start
started
VERB
VBD
mark
to
to
PART
TO
xcomp
VerbForm=Inf
construct
construct
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
upper
upper
ADJ
JJ
obj
Number=Plur
floor
floors
NOUN
NNS
mark
with
with
ADP
IN
nummod
NumForm=Word|NumType=Card
one
one
NUM
CD
nsubj
Number=Sing
side
side
NOUN
NN
advcl
Degree=Cmp
high
higher
ADJ
JJR
case
than
than
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
other
other
ADJ
JJ
obl
Number=Sing
one
one
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT This)) (VP (VBD caused) (S (NP (DT the) (NN tower)) (VP (TO to) (VP (VB lean) (PP (IN in) (NP (DT the) (JJ other) (NN direction))))))) (. .)))
This caused the tower to lean in the other direction.
nsubj
Number=Sing|PronType=Dem
this
This
PRON
DT
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
cause
caused
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
iobj
Number=Sing
tower
tower
NOUN
NN
mark
to
to
PART
TO
xcomp
VerbForm=Inf
lean
lean
VERB
VB
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
other
other
ADJ
JJ
obl
Number=Sing
direction
direction
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT This) (JJ unusual) (NN structure)) (VP (VBD led) (PP (IN to) (S (NP (DT the) (NN tower)) (VP (VBG being) (ADVP (RB actually)) (VP (VBN curved)))))) (. .)))
This unusual structure led to the tower being actually curved.
det
Number=Sing|PronType=Dem
this
This
DET
DT
amod
Degree=Pos
unusual
unusual
ADJ
JJ
nsubj
Number=Sing
structure
structure
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
lead
led
VERB
VBD
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
tower
tower
NOUN
NN
aux:pass
VerbForm=Ger
be
being
AUX
VBG
advmod
actually
actually
ADV
RB
acl
Tense=Past|VerbForm=Part|Voice=Pass
curved
curved
VERB
VBN
punct
.
.
PUNCT
.
(ROOT (S (PP (IN In) (NP (NP (NN spite)) (PP (IN of) (NP (DT these) (NNS efforts))))) (, ,) (NP (DT the) (NN tower)) (VP (VBD kept) (PRT (IN on)) (S (VP (VBG leaning)))) (. .)))
In spite of these efforts, the tower kept on leaning.
case
in
In
ADP
IN
obl
Number=Sing
spite
spite
NOUN
NN
case
of
of
ADP
IN
det
Number=Plur|PronType=Dem
this
these
DET
DT
nmod
Number=Plur
effort
efforts
NOUN
NNS
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
tower
tower
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
keep
kept
VERB
VBD
mark
on
on
SCONJ
IN
advcl
VerbForm=Ger
lean
leaning
VERB
VBG
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NP (DT The) (NN government)) (PP (IN of) (NP (NNP Italy)))) (VP (VBD started) (S (VP (TO to) (VP (VB plan) (NP (NP (NN prevention)) (PP (IN of) (NP (NP (DT the) (JJ complete) (NN collapse)) (PP (IN of) (NP (DT the) (NN tower)))))) (PP (IN in) (NP (CD 1964))))))) (. .)))
The government of Italy started to plan prevention of the complete collapse of the tower in 1964.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
government
government
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
Italy
Italy
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
start
started
VERB
VBD
mark
to
to
PART
TO
xcomp
VerbForm=Inf
plan
plan
VERB
VB
obj
Number=Sing
prevention
prevention
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
complete
complete
ADJ
JJ
nmod
Number=Sing
collapse
collapse
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
tower
tower
NOUN
NN
case
in
in
ADP
IN
obl
NumForm=Digit|NumType=Card
1964
1964
NUM
CD
punct
.
.
PUNCT
.
(ROOT (S (ADVP (RB However)) (, ,) (NP (DT a) (NN request)) (VP (VBD was) (VP (VBN put) (ADVP (RB forward)) (PP (IN by) (NP (DT the) (NNS authorities))) (S (VP (TO to) (VP (VB keep) (NP (DT the) (NN leaning) (NN position)) (PP (IN because) (IN of) (NP (NP (DT the) (NN tourism) (NN industry)) (PP (IN of) (NP (DT the) (NN region)))))))))) (. .)))
However, a request was put forward by the authorities to keep the leaning position because of the tourism industry of the region.
advmod
however
However
ADV
RB
punct
,
,
PUNCT
,
det
Definite=Ind|PronType=Art
a
a
DET
DT
nsubj:pass
Number=Sing
request
request
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
put
put
VERB
VBN
advmod
forward
forward
ADV
RB
case
by
by
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
authority
authorities
NOUN
NNS
mark
to
to
PART
TO
advcl
VerbForm=Inf
keep
keep
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Number=Sing
lean
leaning
NOUN
NN
obj
Number=Sing
position
position
NOUN
NN
case
because
because
ADP
IN
fixed
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
tourism
tourism
NOUN
NN
obl
Number=Sing
industry
industry
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
region
region
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN After) (NP (NP (QP (RB nearly) (CD two)) (NNS decades)) (PP (IN of) (NP (NP (JJ careful) (NN planning)) (PP (IN by) (NP (NNS engineers) (, ,) (NNS historians) (CC and) (NNS mathematicians))))))) (, ,) (NP (NP (DT the) (NN stabilization) (NNS efforts)) (PP (IN for) (NP (NP (DT the) (NNP Leaning) (NNP Tower)) (PP (IN of) (NP (NNP Pisa)))))) (VP (VBD started) (PP (IN in) (NP (CD 1990)))) (. .)))
After nearly two decades of careful planning by engineers, historians and mathematicians, the stabilization efforts for the Leaning Tower of Pisa started in 1990.
case
after
After
ADP
IN
advmod
nearly
nearly
ADV
RB
nummod
NumForm=Word|NumType=Card
two
two
NUM
CD
obl
Number=Plur
decade
decades
NOUN
NNS
case
of
of
ADP
IN
amod
Degree=Pos
careful
careful
ADJ
JJ
nmod
Number=Sing
planning
planning
NOUN
NN
case
by
by
ADP
IN
nmod
Number=Plur
engineer
engineers
NOUN
NNS
punct
,
,
PUNCT
,
conj
Number=Plur
historian
historians
NOUN
NNS
cc
and
and
CCONJ
CC
conj
Number=Plur
mathematician
mathematicians
NOUN
NNS
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
stabilization
stabilization
NOUN
NN
nsubj
Number=Plur
effort
efforts
NOUN
NNS
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
Leaning
Leaning
PROPN
NNP
nmod
Number=Sing
Tower
Tower
PROPN
NNP
case
of
of
ADP
IN
nmod
Number=Sing
Pisa
Pisa
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
start
started
VERB
VBD
case
in
in
ADP
IN
obl
NumForm=Digit|NumType=Card
1990
1990
NUM
CD
punct
.
.
PUNCT
.
(ROOT (S (S (NP (DT The) (NN tower)) (VP (VBD was) (ADJP (VBN closed) (PP (IN for) (NP (DT the) (JJ general) (NN public)))))) (CC and) (S (NP (NP (DT the) (NNS people)) (VP (VBG living) (ADVP (RB nearby)))) (VP (VBD moved) (ADVP (RB away)))) (. .)))
The tower was closed for the general public and the people living nearby moved away.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj:pass
Number=Sing
tower
tower
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
close
closed
VERB
VBN
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
general
general
ADJ
JJ
obl
Number=Sing
public
public
NOUN
NN
cc
and
and
CCONJ
CC
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
person
people
NOUN
NNS
acl
VerbForm=Ger
live
living
VERB
VBG
advmod
nearby
nearby
ADV
RB
conj
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
move
moved
VERB
VBD
advmod
away
away
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (PP (IN For) (S (VP (VBG reducing) (NP (NP (DT the) (JJ total) (NN weight)) (PP (IN of) (NP (DT the) (NN tower))))))) (, ,) (NP (NP (PRP$ its) (CD seven) (NNS bells)) (SBAR (WHNP (WDT which)) (S (VP (VBD represented) (NP (DT the) (CD seven) (JJ musical) (NNS notes)))))) (VP (VBD were) (VP (VBN removed))) (. .)))
For reducing the total weight of the tower, its seven bells which represented the seven musical notes were removed.
mark
for
For
SCONJ
IN
advcl
VerbForm=Ger
reduce
reducing
VERB
VBG
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
total
total
ADJ
JJ
obj
Number=Sing
weight
weight
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
tower
tower
NOUN
NN
punct
,
,
PUNCT
,
nmod:poss
Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs
its
its
PRON
PRP$
nummod
NumForm=Word|NumType=Card
seven
seven
NUM
CD
nsubj:pass
Number=Plur
bell
bells
NOUN
NNS
nsubj
PronType=Rel
which
which
PRON
WDT
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
represent
represented
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
nummod
NumForm=Word|NumType=Card
seven
seven
NUM
CD
amod
Degree=Pos
musical
musical
ADJ
JJ
obj
Number=Plur
note
notes
NOUN
NNS
aux:pass
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
remove
removed
VERB
VBN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (NN tower)) (VP (VBD was) (VP (VBN reopened) (PP (IN for) (NP (DT the) (JJ general) (NN public))) (PP (IN on) (NP (NNP December) (CD 15) (, ,) (CD 2001))))) (. .)))
The tower was reopened for the general public on December 15, 2001.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj:pass
Number=Sing
tower
tower
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
reopen
reopened
VERB
VBN
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
general
general
ADJ
JJ
obl
Number=Sing
public
public
NOUN
NN
case
on
on
ADP
IN
obl
Number=Sing
December
December
PROPN
NNP
nummod
NumForm=Digit|NumType=Card
15
15
NUM
CD
punct
,
,
PUNCT
,
nummod
NumForm=Digit|NumType=Card
2001
2001
NUM
CD
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN In) (NP (NNP May) (CD 2008))) (, ,) (PP (IN after) (S (VP (VBG removing) (NP (NP (QP (DT another) (CD 70)) (NN metric) (NNS tons)) (PP (IN of) (NP (NN earth))))))) (, ,) (NP (DT the) (NNS engineers)) (VP (VBD announced) (SBAR (IN that) (S (S (NP (DT the) (NN tower)) (VP (VBD had) (VP (VBN been) (ADVP (RB finally)) (VP (VBN stabilized))))) (CC and) (S (NP (PRP it)) (VP (MD would) (VP (VB remain) (ADJP (JJ stable)) (PP (IN for) (NP (QP (ADVP (IN at) (JJS least)) (CD 200)) (NNS years))))))))) (. .)))
In May 2008, after removing another 70 metric tons of earth, the engineers announced that the tower had been finally stabilized and it would remain stable for at least 200 years.
case
in
In
ADP
IN
obl
Number=Sing
May
May
PROPN
NNP
nummod
NumForm=Digit|NumType=Card
2008
2008
NUM
CD
punct
,
,
PUNCT
,
mark
after
after
SCONJ
IN
advcl
VerbForm=Ger
remove
removing
VERB
VBG
det
another
another
DET
DT
nummod
NumForm=Digit|NumType=Card
70
70
NUM
CD
compound
Number=Sing
metric
metric
NOUN
NN
obj
Number=Plur
ton
tons
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Sing
earth
earth
NOUN
NN
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
engineer
engineers
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
announce
announced
VERB
VBD
mark
that
that
SCONJ
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj:pass
Number=Sing
tower
tower
NOUN
NN
aux
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
have
had
AUX
VBD
aux:pass
Tense=Past|VerbForm=Part
be
been
AUX
VBN
advmod
finally
finally
ADV
RB
ccomp
Tense=Past|VerbForm=Part|Voice=Pass
stabilize
stabilized
VERB
VBN
cc
and
and
CCONJ
CC
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
aux
VerbForm=Fin
would
would
AUX
MD
conj
VerbForm=Inf
remain
remain
VERB
VB
xcomp
Degree=Pos
stable
stable
ADJ
JJ
case
for
for
ADP
IN
case
at
at
ADP
IN
nmod
Degree=Sup
least
least
ADJ
JJS
nummod
NumForm=Digit|NumType=Card
200
200
NUM
CD
obl
Number=Plur
year
years
NOUN
NNS
punct
.
.
PUNCT
.
The Leaning Tower of Pisa was straight like a pole when the construction began in 1173. It started to shift direction soon after construction because of poor foundation in addition to the loose layer of subsoil. At the beginning, it leaned to the southeast before the shaky foundation started to shift leaning towards the southwest. After the period of structural strengthening at the beginning of the 21stcentury, now the Leaning Tower of Pisa leans at an angle of 3.97 degrees.  In 1178, the shift in direction was observed for the first time when the construction had progressed further to the third floor. The tower was heavy for the three-meter foundation that was built on a weak area of land.  For compensating the leaning position, the builders started to construct the upper floors with one side higher than the other one. This caused the tower to lean in the other direction. This unusual structure led to the tower being actually curved. In spite of these efforts, the tower kept on leaning.  The government of Italy started to plan prevention of the complete collapse of the tower in 1964. However, a request was put forward by the authorities to keep the leaning position because of the tourism industry of the region.  After nearly two decades of careful planning by engineers, historians and mathematicians, the stabilization efforts for the Leaning Tower of Pisa started in 1990. The tower was closed for the general public and the people living nearby moved away. For reducing the total weight of the tower, its seven bells which represented the seven musical notes were removed. The tower was reopened for the general public on December 15, 2001.  In May 2008, after removing another 70 metric tons of earth, the engineers announced that the tower had been finally stabilized and it would remain stable for at least 200 years.