(ROOT (S (NP (PRP We)) (VP (VBP have) (VP (VBN learned) (NP (NP (DT a) (JJ great) (NN deal)) (PP (IN about) (SBAR (WHADVP (WRB how)) (S (NP (JJ physical) (NNS traits)) (VP (VBP are) (VP (VBN passed) (PP (PP (IN from) (NP (NN generation))) (PP (IN to) (NP (NN generation)))))))))))) (. .)))
We have learned a great deal about how physical traits are passed from generation to generation.
nsubj
Case=Nom|Number=Plur|Person=1|PronType=Prs
we
We
PRON
PRP
aux
Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
root
Tense=Past|VerbForm=Part
learn
learned
VERB
VBN
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
great
great
ADJ
JJ
obj
Number=Sing
deal
deal
NOUN
NN
mark
about
about
SCONJ
IN
advmod
PronType=Int
how
how
ADV
WRB
amod
Degree=Pos
physical
physical
ADJ
JJ
nsubj:pass
Number=Plur
trait
traits
NOUN
NNS
aux:pass
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
acl
Tense=Past|VerbForm=Part|Voice=Pass
pass
passed
VERB
VBN
case
from
from
ADP
IN
obl
Number=Sing
generation
generation
NOUN
NN
case
to
to
ADP
IN
obl
Number=Sing
generation
generation
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NNS Scientists)) (VP (VBP know) (SBAR (IN that) (S (NP (NP (NN DNA) (NNS molecules)) (PP (IN in) (NP (JJ human) (NNS cells)))) (VP (VBP carry) (NP (VBN inherited) (JJ physical) (NNS traits)) (PP (IN in) (NP (NP (DT a) (NN sort)) (PP (IN of) (NP (JJ chemical) (NN code))))))))) (. .)))
Scientists know that DNA molecules in human cells carry inherited physical traits in a sort of chemical code.
nsubj
Number=Plur
scientist
Scientists
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
know
know
VERB
VBP
mark
that
that
SCONJ
IN
compound
Number=Sing
DNA
DNA
NOUN
NN
nsubj
Number=Plur
molecule
molecules
NOUN
NNS
case
in
in
ADP
IN
amod
Degree=Pos
human
human
ADJ
JJ
nmod
Number=Plur
cell
cells
NOUN
NNS
ccomp
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
carry
carry
VERB
VBP
amod
Tense=Past|VerbForm=Part
inherit
inherited
VERB
VBN
amod
Degree=Pos
physical
physical
ADJ
JJ
obj
Number=Plur
trait
traits
NOUN
NNS
case
in
in
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl
Number=Sing
sort
sort
NOUN
NN
case
of
of
ADP
IN
amod
Degree=Pos
chemical
chemical
ADJ
JJ
nmod
Number=Sing
code
code
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT Some) (NN day)) (NP (PRP we)) (VP (MD may) (VP (VB learn) (SBAR (WHADVP (WRB how)) (S (VP (TO to) (VP (VB change) (NP (DT these) (NN DNA) (NNS molecules)) (SBAR (IN so) (IN as) (S (VP (TO to) (VP (VB change) (NP (NP (DT the) (JJ physical) (NNS traits)) (SBAR (S (NP (PRP they)) (VP (VBP carry))))))))))))))) (. .)))
Some day we may learn how to change these DNA molecules so as to change the physical traits they carry.
det
some
Some
DET
DT
obl:tmod
Number=Sing
day
day
NOUN
NN
nsubj
Case=Nom|Number=Plur|Person=1|PronType=Prs
we
we
PRON
PRP
aux
VerbForm=Fin
may
may
AUX
MD
root
VerbForm=Inf
learn
learn
VERB
VB
obj
PronType=Int
how
how
ADV
WRB
mark
to
to
PART
TO
acl
VerbForm=Inf
change
change
VERB
VB
det
Number=Plur|PronType=Dem
this
these
DET
DT
compound
Number=Sing
DNA
DNA
NOUN
NN
obj
Number=Plur
molecule
molecules
NOUN
NNS
mark
so
so
SCONJ
IN
fixed
as
as
SCONJ
IN
fixed
to
to
PART
TO
advcl
VerbForm=Inf
change
change
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
physical
physical
ADJ
JJ
obj
Number=Plur
trait
traits
NOUN
NNS
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
carry
carry
VERB
VBP
punct
.
.
PUNCT
.
(ROOT (S (ADVP (RB Eventually)) (, ,) (NP (NNS parents)) (VP (MD may) (VP (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VB choose) (SBAR (WHNP (WDT what)) (S (VP (NNS traits) (SBAR (S (NP (PRP$ their) (NNS children)) (VP (MD will) (VP (VB inherit))))))))))))) (: ;) (NP (NP (JJ blue) (NNS eyes)) (CC or) (NP (JJ brown) (, ,) (JJ tall) (NNS bodies)) (CC or) (ADJP (JJ short))))) (. .)))
Eventually, parents may be able to choose what traits their children will inherit; blue eyes or brown, tall bodies or short.
advmod
eventually
Eventually
ADV
RB
punct
,
,
PUNCT
,
nsubj
Number=Plur
parent
parents
NOUN
NNS
aux
VerbForm=Fin
may
may
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
root
Degree=Pos
able
able
ADJ
JJ
mark
to
to
PART
TO
xcomp
VerbForm=Inf
choose
choose
VERB
VB
det
PronType=Int
what
what
DET
WDT
obj
Number=Plur
trait
traits
NOUN
NNS
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nsubj
Number=Plur
child
children
NOUN
NNS
aux
VerbForm=Fin
will
will
AUX
MD
ccomp
VerbForm=Inf
inherit
inherit
VERB
VB
punct
;
;
PUNCT
:
amod
Degree=Pos
blue
blue
ADJ
JJ
appos
Number=Plur
eye
eyes
NOUN
NNS
cc
or
or
CCONJ
CC
conj
Degree=Pos
brown
brown
ADJ
JJ
punct
,
,
PUNCT
,
amod
Degree=Pos
tall
tall
ADJ
JJ
conj
Number=Plur
body
bodies
NOUN
NNS
cc
or
or
CCONJ
CC
conj
Degree=Pos
short
short
ADJ
JJ
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (S (NP (NP (JJS Most) (NNS children)) (PP (IN of) (NP (NN today)))) (VP (VBP are) (ADJP (ADJP (JJR taller)) (PP (IN than) (NP (PRP$ their) (NNS parents)))))) (, ,) (CC but) (S (NP (DT this)) (VP (MD may) (VP (VB be) (PP (PP (IN due) (IN to) (NP (JJR better) (NN nutrition))) (CONJP (RB rather) (IN than)) (PP (IN to) (NP (DT an) (VBN inherited) (NN change))))))) (. .)))
Most children of today are taller than their parents, but this may be due to better nutrition rather than to an inherited change.
amod
Degree=Sup
most
Most
ADJ
JJS
nsubj
Number=Plur
child
children
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Sing
today
today
NOUN
NN
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
root
Degree=Cmp
tall
taller
ADJ
JJR
case
than
than
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
obl
Number=Plur
parent
parents
NOUN
NNS
punct
,
,
PUNCT
,
cc
but
but
CCONJ
CC
nsubj
Number=Sing|PronType=Dem
this
this
PRON
DT
aux
VerbForm=Fin
may
may
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
case
due
due
ADP
IN
fixed
to
to
ADP
IN
amod
Degree=Cmp
good
better
ADJ
JJR
conj
Number=Sing
nutrition
nutrition
NOUN
NN
cc
rather
rather
ADV
RB
fixed
than
than
ADP
IN
case
to
to
ADP
IN
det
Definite=Ind|PronType=Art
a
an
DET
DT
amod
Tense=Past|VerbForm=Part
inherit
inherited
VERB
VBN
conj
Number=Sing
change
change
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (PP (IN In) (NP (DT some) (NN population) (NNS groups))) (, ,) (NP (NN height)) (VP (VBZ is) (VP (VBG increasing) (NP (NP (CD one) (NN inch)) (PP (IN per) (NP (NN generation)))))) (. .)))
In some population groups, height is increasing one inch per generation.
case
in
In
ADP
IN
det
some
some
DET
DT
compound
Number=Sing
population
population
NOUN
NN
obl
Number=Plur
group
groups
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Number=Sing
height
height
NOUN
NN
aux
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Tense=Pres|VerbForm=Part
increase
increasing
VERB
VBG
nummod
NumForm=Word|NumType=Card
one
one
NUM
CD
obj
Number=Sing
inch
inch
NOUN
NN
case
per
per
ADP
IN
nmod
Number=Sing
generation
generation
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (SQ (VBZ Is) (NP (NP (PRP it))) (NP (DT a) (JJ good) (NN thing)) (SBAR (IN for) (S (NP (NNS people)) (VP (TO to) (VP (VB get) (ADJP (ADJP (JJR taller)) (PP (IN than) (ADJP (JJR taller)))))))) (. ?)))
Is it a good thing for people to get taller than taller?
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
Is
AUX
VBZ
expl
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
good
good
ADJ
JJ
root
Number=Sing
thing
thing
NOUN
NN
mark
for
for
SCONJ
IN
nsubj
Number=Plur
person
people
NOUN
NNS
mark
to
to
PART
TO
csubj
VerbForm=Inf
get
get
VERB
VB
xcomp
Degree=Cmp
tall
taller
ADJ
JJR
case
than
than
ADP
IN
obl
Degree=Cmp
tall
taller
ADJ
JJR
punct
?
?
PUNCT
.
(ROOT (FRAG (INTJ (UH No)) (, ,) (VP (VB say)) (NP (JJ certain) (NNS experts)) (. .)))
No, say certain experts.
discourse
Polarity=Neg
no
No
INTJ
UH
punct
,
,
PUNCT
,
root
Mood=Imp|VerbForm=Fin
say
say
VERB
VB
amod
Degree=Pos
certain
certain
ADJ
JJ
obj
Number=Plur
expert
experts
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (JJ human) (NN skeleton)) (VP (MD would) (VP (VB be) (VP (VBN strained) (S (VP (VBG carrying) (NP (NP (DT the) (NN weight)) (PP (IN of) (NP (DT a) (ADJP (RB very) (JJ tall)) (NN body))))))))) (. .)))
The human skeleton would be strained carrying the weight of a very tall body.
det
Definite=Def|PronType=Art
the
The
DET
DT
amod
Degree=Pos
human
human
ADJ
JJ
nsubj:pass
Number=Sing
skeleton
skeleton
NOUN
NN
aux
VerbForm=Fin
would
would
AUX
MD
aux:pass
VerbForm=Inf
be
be
AUX
VB
root
Tense=Past|VerbForm=Part|Voice=Pass
strain
strained
VERB
VBN
advcl
VerbForm=Ger
carry
carrying
VERB
VBG
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
weight
weight
NOUN
NN
case
of
of
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
advmod
very
very
ADV
RB
amod
Degree=Pos
tall
tall
ADJ
JJ
nmod
Number=Sing
body
body
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (-LRB- -LRB-) (PP (IN In) (NP (NP (DT a) (NN world)) (SBAR (WHADVP (WRB where)) (S (NP (NNS workers)) (VP (VBP use) (NP (NN power) (NNS tools)) (PP (IN for) (NP (JJ heavy) (NN work)))))))) (, ,) (NP (EX there)) (VP (VBZ is) (NP (DT no) (JJ special) (NN advantage)) (PP (IN in) (NP (JJ great) (NN height) (CC or) (NN strenghth)))) (. .) (-RRB- -RRB-)))
(In a world where workers use power tools for heavy work, there is no special advantage in great height or strenghth.)
punct
(
(
PUNCT
-LRB-
case
in
In
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl
Number=Sing
world
world
NOUN
NN
advmod
PronType=Rel
where
where
ADV
WRB
nsubj
Number=Plur
worker
workers
NOUN
NNS
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
use
use
VERB
VBP
compound
Number=Sing
power
power
NOUN
NN
obj
Number=Plur
tool
tools
NOUN
NNS
case
for
for
ADP
IN
amod
Degree=Pos
heavy
heavy
ADJ
JJ
obl
Number=Sing
work
work
NOUN
NN
punct
,
,
PUNCT
,
expl
there
there
PRON
EX
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
VERB
VBZ
det
no
no
DET
DT
amod
Degree=Pos
special
special
ADJ
JJ
nsubj
Number=Sing
advantage
advantage
NOUN
NN
case
in
in
ADP
IN
amod
Degree=Pos
great
great
ADJ
JJ
nmod
Number=Sing
height
height
NOUN
NN
cc
or
or
CCONJ
CC
conj
Number=Sing
strenghth
strenghth
NOUN
NN
punct
.
.
PUNCT
.
punct
)
)
PUNCT
-RRB-
(ROOT (S (NP (PRP It)) (VP (MD might) (VP (VB be) (ADJP (JJR better)) (PRN (, ,) (S (NP (DT some)) (VP (VBP say))) (, ,)) (SBAR (IN if) (S (NP (NNS people)) (VP (VBD got) (ADJP (JJR smaller))))))) (. .)))
It might be better, some say, if people got smaller.
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
It
PRON
PRP
aux
VerbForm=Fin
might
might
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
root
Degree=Cmp
good
better
ADJ
JJR
punct
,
,
PUNCT
,
nsubj
some
some
DET
DT
parataxis
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
say
say
VERB
VBP
punct
,
,
PUNCT
,
mark
if
if
SCONJ
IN
nsubj
Number=Plur
person
people
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
get
got
VERB
VBD
xcomp
Degree=Cmp
small
smaller
ADJ
JJR
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (JJR Smaller) (NNS humans)) (VP (VP (MD would) (VP (VB need) (NP (JJR less) (NN food)))) (CC and) (VP (MD could) (VP (VB live) (PP (IN in) (NP (JJR smaller) (NNS houses)))))) (. .)))
Smaller humans would need less food and could live in smaller houses.
amod
Degree=Cmp
small
Smaller
ADJ
JJR
nsubj
Number=Plur
human
humans
NOUN
NNS
aux
VerbForm=Fin
would
would
AUX
MD
root
VerbForm=Inf
need
need
VERB
VB
amod
Degree=Cmp
less
less
ADJ
JJR
obj
Number=Sing
food
food
NOUN
NN
cc
and
and
CCONJ
CC
aux
VerbForm=Fin
could
could
AUX
MD
conj
VerbForm=Inf
live
live
VERB
VB
case
in
in
ADP
IN
amod
Degree=Cmp
small
smaller
ADJ
JJR
obl
Number=Plur
house
houses
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP They)) (VP (MD would) (VP (VB fit) (ADVP (RBR more) (RB comfortably)) (PP (IN into) (NP (JJ cramped) (NN spacecraft))))) (. .)))
They would fit more comfortably into cramped spacecraft.
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
They
PRON
PRP
aux
VerbForm=Fin
would
would
AUX
MD
root
VerbForm=Inf
fit
fit
VERB
VB
advmod
Degree=Cmp
more
more
ADV
RBR
advmod
comfortably
comfortably
ADV
RB
case
into
into
ADP
IN
amod
Degree=Pos
cramped
cramped
ADJ
JJ
obl
Number=Sing
spacecraft
spacecraft
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP They)) (VP (MD would) (VP (VB drive) (NP (JJR smaller) (NNS cars)) (PP (IN on) (NP (JJR narrower) (NNS roads))))) (. .)))
They would drive smaller cars on narrower roads.
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
They
PRON
PRP
aux
VerbForm=Fin
would
would
AUX
MD
root
VerbForm=Inf
drive
drive
VERB
VB
amod
Degree=Cmp
small
smaller
ADJ
JJR
obj
Number=Plur
car
cars
NOUN
NNS
case
on
on
ADP
IN
amod
Degree=Cmp
narry
narrower
ADJ
JJR
obl
Number=Plur
road
roads
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (JJR Smaller) (NNS people)) (VP (MD would) (VP (VB make) (S (NP (DT the) (NN world)) (VP (VB seem) (S (ADJP (ADJP (JJ large)) (CC and) (ADJP (RBR less) (JJ crowded)))))))) (. .)))
Smaller people would make the world seem large and less crowded.
amod
Degree=Cmp
small
Smaller
ADJ
JJR
nsubj
Number=Plur
person
people
NOUN
NNS
aux
VerbForm=Fin
would
would
AUX
MD
root
VerbForm=Inf
make
make
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
world
world
NOUN
NN
xcomp
VerbForm=Inf
seem
seem
VERB
VB
xcomp
Degree=Pos
large
large
ADJ
JJ
cc
and
and
CCONJ
CC
advmod
Degree=Cmp
less
less
ADV
RBR
conj
Degree=Pos
crowded
crowded
ADJ
JJ
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (DT The) (NN world) (POS 's)) (JJ natural) (NNS resources)) (VP (MD would) (VP (VB last) (ADVP (RBR longer)))) (. .)))
The world's natural resources would last longer.
det
Definite=Def|PronType=Art
the
The
DET
DT
nmod:poss
Number=Sing
world
world
NOUN
NN
case
's
's
PART
POS
amod
Degree=Pos
natural
natural
ADJ
JJ
nsubj
Number=Plur
resource
resources
NOUN
NNS
aux
VerbForm=Fin
would
would
AUX
MD
root
VerbForm=Inf
last
last
VERB
VB
advmod
Degree=Cmp
long
longer
ADV
RBR
punct
.
.
PUNCT
.
(ROOT (S (RB So) (NP (NP (PRP it))) (VP (VBZ is) (ADJP (JJ possible)) (SBAR (IN that) (S (SBAR (IN if) (S (NP (NNS scientists)) (VP (VBP learn) (S (VP (TO to) (VP (VB control) (NP (VBN inherited) (JJ physical) (NNS traits)))))))) (, ,) (NP (PRP they)) (VP (MD might) (VP (VB speak) (PRT (RP out)) (PP (IN for) (NP (NP (DT a) (NN reduction)) (PP (IN in) (NP (JJ human) (NN size)))))))))) (. .)))
So it is possible that if scientists learn to control inherited physical traits, they might speak out for a reduction in human size.
advmod
so
So
ADV
RB
expl
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Degree=Pos
possible
possible
ADJ
JJ
mark
that
that
SCONJ
IN
mark
if
if
SCONJ
IN
nsubj
Number=Plur
scientist
scientists
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
learn
learn
VERB
VBP
mark
to
to
PART
TO
xcomp
VerbForm=Inf
control
control
VERB
VB
amod
Tense=Past|VerbForm=Part
inherit
inherited
VERB
VBN
amod
Degree=Pos
physical
physical
ADJ
JJ
obj
Number=Plur
trait
traits
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
aux
VerbForm=Fin
might
might
AUX
MD
csubj
VerbForm=Inf
speak
speak
VERB
VB
compound:prt
out
out
ADP
RP
case
for
for
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl
Number=Sing
reduction
reduction
NOUN
NN
case
in
in
ADP
IN
amod
Degree=Pos
human
human
ADJ
JJ
nmod
Number=Sing
size
size
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NNS Anthropologists)) (VP (VBP have) (VP (VBN estimated) (NP (NP (DT the) (NNS heights)) (PP (IN of) (NP (JJ ancient) (NNS people))) (PP (IN from) (NP (NN fossil) (NNS bones)))))) (. .)))
Anthropologists have estimated the heights of ancient people from fossil bones.
nsubj
Number=Plur
anthropologist
Anthropologists
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
root
Tense=Past|VerbForm=Part
estimate
estimated
VERB
VBN
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Plur
height
heights
NOUN
NNS
case
of
of
ADP
IN
amod
Degree=Pos
ancient
ancient
ADJ
JJ
nmod
Number=Plur
person
people
NOUN
NNS
case
from
from
ADP
IN
compound
Number=Sing
fossil
fossil
NOUN
NN
obl
Number=Plur
bone
bones
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP They)) (VP (VBP have) (VP (VBN compared) (NP (DT these) (NNS heights)) (PP (IN with) (NP (NP (DT the) (NNS heights)) (PP (IN of) (NP (NP (NNS people)) (VP (ADVP (RB now)) (VBG living) (PP (IN in) (NP (NP (DT all) (NNS parts)) (PP (IN of) (NP (DT the) (NN world)))))))))))) (. .)))
They have compared these heights with the heights of people now living in all parts of the world.
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
They
PRON
PRP
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
root
Tense=Past|VerbForm=Part
compare
compared
VERB
VBN
det
Number=Plur|PronType=Dem
this
these
DET
DT
obj
Number=Plur
height
heights
NOUN
NNS
case
with
with
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
height
heights
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Plur
person
people
NOUN
NNS
advmod
now
now
ADV
RB
acl
VerbForm=Ger
live
living
VERB
VBG
case
in
in
ADP
IN
det
all
all
DET
DT
obl
Number=Plur
part
parts
NOUN
NNS
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
world
world
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (NN evidence)) (VP (VBZ appears) (SBAR (IN that) (S (NP (JJS most) (NNS people)) (VP (VBP are) (VP (VBG getting) (ADJP (JJR taller))))))) (. .)))
The evidence appears that most people are getting taller.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
evidence
evidence
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
appear
appears
VERB
VBZ
mark
that
that
SCONJ
IN
amod
Degree=Sup
most
most
ADJ
JJS
nsubj
Number=Plur
person
people
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
ccomp
Tense=Pres|VerbForm=Part
get
getting
VERB
VBG
xcomp
Degree=Cmp
tall
taller
ADJ
JJR
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (DT The) (NN human)) (PP (IN of) (NP (NN tomorrow)))) (VP (MD may) (VP (VB be) (ADVP (RB still)) (ADJP (JJR taller) (, -) (SBAR (IN unless) (S (NP (PRP he) (CC or) (PRP she)) (VP (VBZ decides) (S (VP (TO to) (VP (VB be) (ADJP (JJR smaller))))))))))) (. .)))
The human of tomorrow may be still taller - unless he or she decides to be smaller.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
human
human
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
tomorrow
tomorrow
NOUN
NN
aux
VerbForm=Fin
may
may
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
advmod
still
still
ADV
RB
root
Degree=Cmp
tall
taller
ADJ
JJR
punct
-
-
PUNCT
,
mark
unless
unless
SCONJ
IN
nsubj
Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
he
PRON
PRP
cc
or
or
CCONJ
CC
conj
Case=Nom|Gender=Fem|Number=Sing|Person=3|PronType=Prs
she
she
PRON
PRP
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
decide
decides
VERB
VBZ
mark
to
to
PART
TO
cop
VerbForm=Inf
be
be
AUX
VB
xcomp
Degree=Cmp
small
smaller
ADJ
JJR
punct
.
.
PUNCT
.
We have learned a great deal about how physical traits are passed from generation to generation. Scientists know that DNA molecules in human cells carry inherited physical traits in a sort of chemical code.  Some day we may learn how to change these DNA molecules so as to change the physical traits they carry. Eventually, parents may be able to choose what traits their children will inherit; blue eyes or brown, tall bodies or short.  Most children of today are taller than their parents, but this may be due to better nutrition rather than to an inherited change. In some population groups, height is increasing one inch per generation.  Is it a good thing for people to get taller than taller? No, say certain experts. The human skeleton would be strained carrying the weight of a very tall body. (In a world where workers use power tools for heavy work, there is no special advantage in great height or strenghth.) It might be better, some say, if people got smaller.  Smaller humans would need less food and could live in smaller houses. They would fit more comfortably into cramped spacecraft. They would drive smaller cars on narrower roads. Smaller people would make the world seem large and less crowded. The world's natural resources would last longer. So it is possible that if scientists learn to control inherited physical traits, they might speak out for a reduction in human size.  Anthropologists have estimated the heights of ancient people from fossil bones. They have compared these heights with the heights of people now living in all parts of the world. The evidence appears that most people are getting taller. The human of tomorrow may be still taller - unless he or she decides to be smaller.