(ROOT (S (S (SBAR (IN With) (S (NP (QP (RB around) (CD 100)) (NNS students)) (VP (VBN scheduled) (S (VP (TO to) (VP (VB be) (PP (IN in) (NP (DT that) (CD 9:00) (NML (NN am) (NNP Monday) (NN morning)) (NN lecture))))))))) (, ,) (NP (NP (PRP it))) (VP (VBZ is) (NP (DT no) (NN surprise)) (SBAR (IN that) (S (S (NP (QP (RB almost) (CD 20)) (NNS people)) (ADVP (RB actually)) (VP (VBP make) (NP (PRP it)) (PP (IN to) (NP (DT the) (NN class))))) (CC and) (S (NP (NP (QP (RB only) (CD 10))) (PP (IN of) (NP (PRP them)))) (VP (VBP are) (ADVP (RB still)) (ADJP (JJ awake)) (PP (IN after) (NP (DT the) (JJ first) (CD 15) (NNS minutes))))))))) (: ;) (S (NP (NP (PRP it))) (VP (VBZ is) (RB not) (NP (RB even) (DT a) (NN surprise)) (SBAR (IN that) (S (NP (NP (JJS most)) (PP (IN of) (NP (PRP them)))) (VP (VBP are) (ADVP (RB still)) (PP (IN in) (NP (PRP$ their) (NN pajama) (POS 's)))))))) (. .)))
With around 100 students scheduled to be in that 9:00 am Monday morning lecture, it is no surprise that almost 20 people actually make it to the class and only 10 of them are still awake after the first 15 minutes; it is not even a surprise that most of them are still in their pajama's.
case
with
With
ADP
IN
advmod
around
around
ADV
RB
nummod
NumForm=Digit|NumType=Card
100
100
NUM
CD
obl
Number=Plur
student
students
NOUN
NNS
acl
Tense=Past|VerbForm=Part
schedule
scheduled
VERB
VBN
mark
to
to
PART
TO
cop
VerbForm=Inf
be
be
AUX
VB
case
in
in
ADP
IN
det
Number=Sing|PronType=Dem
that
that
DET
DT
nummod
NumForm=Digit|NumType=Card
9:00
9:00
NUM
CD
compound
Number=Sing
a.m.
am
NOUN
NN
compound
Number=Sing
Monday
Monday
PROPN
NNP
compound
Number=Sing
morning
morning
NOUN
NN
xcomp
Number=Sing
lecture
lecture
NOUN
NN
punct
,
,
PUNCT
,
nsubj
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
det
no
no
DET
DT
root
Number=Sing
surprise
surprise
NOUN
NN
mark
that
that
SCONJ
IN
advmod
almost
almost
ADV
RB
nummod
NumForm=Digit|NumType=Card
20
20
NUM
CD
nsubj
Number=Plur
person
people
NOUN
NNS
advmod
actually
actually
ADV
RB
csubj
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
make
make
VERB
VBP
obj
Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
class
class
NOUN
NN
cc
and
and
CCONJ
CC
advmod
only
only
ADV
RB
nsubj
NumForm=Digit|NumType=Card
10
10
NUM
CD
case
of
of
ADP
IN
nmod
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advmod
still
still
ADV
RB
conj
Degree=Pos
awake
awake
ADJ
JJ
case
after
after
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
first
first
ADJ
JJ
nummod
NumForm=Digit|NumType=Card
15
15
NUM
CD
obl
Number=Plur
minute
minutes
NOUN
NNS
punct
;
;
PUNCT
:
nsubj
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
advmod
not
not
PART
RB
advmod
even
even
ADV
RB
det
Definite=Ind|PronType=Art
a
a
DET
DT
parataxis
Number=Sing
surprise
surprise
NOUN
NN
mark
that
that
SCONJ
IN
nsubj
Degree=Sup
most
most
ADJ
JJS
case
of
of
ADP
IN
nmod
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advmod
still
still
ADV
RB
case
in
in
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
acl:relcl
Number=Sing
pajama
pajama
NOUN
NN
case
's
's
PART
POS
punct
.
.
PUNCT
.
(ROOT (S (ADVP (RB Obviously)) (, ,) (NP (NNS students)) (VP (VBP are) (ADJP (JJ terrible)) (PP (IN at) (S (VP (VBG adjusting) (NP (PRP$ their) (NN sleep) (NNS cycles)) (PP (IN to) (NP (PRP$ their) (JJ daily) (NN schedule))))))) (. .)))
Obviously, students are terrible at adjusting their sleep cycles to their daily schedule.
advmod
obviously
Obviously
ADV
RB
punct
,
,
PUNCT
,
nsubj
Number=Plur
student
students
NOUN
NNS
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
root
Degree=Pos
terrible
terrible
ADJ
JJ
mark
at
at
SCONJ
IN
advcl
VerbForm=Ger
adjust
adjusting
VERB
VBG
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
compound
Number=Sing
sleep
sleep
NOUN
NN
obj
Number=Plur
cycle
cycles
NOUN
NNS
case
to
to
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
amod
Degree=Pos
daily
daily
ADJ
JJ
obl
Number=Sing
schedule
schedule
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT All) (JJ human) (NNS beings)) (VP (VBP possess) (NP (DT a) (NN body) (NN clock))) (. .)))
All human beings possess a body clock.
det
all
All
DET
DT
amod
Degree=Pos
human
human
ADJ
JJ
nsubj
Number=Plur
being
beings
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
possess
possess
VERB
VBP
det
Definite=Ind|PronType=Art
a
a
DET
DT
compound
Number=Sing
body
body
NOUN
NN
obj
Number=Sing
clock
clock
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (PP (IN Along) (PP (IN with) (NP (JJ other) (NN alerting) (NNS systems)))) (, ,) (NP (DT this)) (VP (VP (VBZ governs) (NP (DT the) (NN sleep/wake) (NN cycle))) (CC and) (VP (VBZ is) (ADVP (RB therefore)) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (JJ main) (NNS processes)) (SBAR (WHNP (WDT which)) (S (VP (VBP govern) (NP (NN sleep) (NN behaviour)))))))))) (. .)))
Along with other alerting systems, this governs the sleep/wake cycle and is therefore one of the main processes which govern sleep behaviour.
case
along
Along
ADP
IN
case
with
with
ADP
IN
amod
Degree=Pos
other
other
ADJ
JJ
compound
Number=Sing
alerting
alerting
NOUN
NN
obl
Number=Plur
system
systems
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Number=Sing|PronType=Dem
this
this
PRON
DT
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
govern
governs
VERB
VBZ
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
sleep/wake
sleep/wake
NOUN
NN
obj
Number=Sing
cycle
cycle
NOUN
NN
cc
and
and
CCONJ
CC
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
advmod
therefore
therefore
ADV
RB
conj
NumForm=Word|NumType=Card
one
one
NUM
CD
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
main
main
ADJ
JJ
nmod
Number=Plur
process
processes
NOUN
NNS
nsubj
PronType=Rel
which
which
PRON
WDT
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
govern
govern
VERB
VBP
compound
Number=Sing
sleep
sleep
NOUN
NN
obj
Number=Sing
behaviour
behaviour
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (ADVP (RB Typically)) (, ,) (NP (DT the) (VBN preferred) (NN sleep/wake) (NN cycle)) (VP (VBZ is) (VP (VBN delayed) (PP (IN in) (NP (NP (NNS adolescents)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ leads) (PP (IN to) (S (NP (JJ many) (NNS students)) (RB not) (VP (VBG feeling) (ADJP (JJ sleepy)) (PP (IN until) (ADVP (RB much) (RBR later) (PP (IN in) (NP (DT the) (NNS evenings))))))))))))))) (. .)))
Typically, the preferred sleep/wake cycle is delayed in adolescents, which leads to many students not feeling sleepy until much later in the evenings.
advmod
typically
Typically
ADV
RB
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Tense=Past|VerbForm=Part
prefer
preferred
VERB
VBN
compound
Number=Sing
sleep/wake
sleep/wake
NOUN
NN
nsubj:pass
Number=Sing
cycle
cycle
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Tense=Past|VerbForm=Part|Voice=Pass
delay
delayed
VERB
VBN
case
in
in
ADP
IN
obl
Number=Plur
adolescent
adolescents
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
PronType=Rel
which
which
PRON
WDT
acl:relcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
lead
leads
VERB
VBZ
case
to
to
ADP
IN
amod
Degree=Pos
many
many
ADJ
JJ
obl
Number=Plur
student
students
NOUN
NNS
advmod
not
not
PART
RB
advcl
VerbForm=Ger
feel
feeling
VERB
VBG
xcomp
Degree=Pos
sleepy
sleepy
ADJ
JJ
case
until
until
ADP
IN
advmod
much
much
ADV
RB
obl
Degree=Cmp
late
later
ADV
RBR
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
evening
evenings
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (DT This) (JJ typical) (NN sleep) (NN pattern)) (VP (VBZ is) (ADVP (RB usually)) (VP (VBN referred) (PP (IN to)) (PP (IN as) (NP (NP (DT the) (`` ``) (NML (NN night) (NN owl)) ('' '') (NN schedule)) (PP (IN of) (NP (NN sleep))))))) (. .)))
This typical sleep pattern is usually referred to as the "night owl" schedule of sleep.
det
Number=Sing|PronType=Dem
this
This
DET
DT
amod
Degree=Pos
typical
typical
ADJ
JJ
compound
Number=Sing
sleep
sleep
NOUN
NN
nsubj:pass
Number=Sing
pattern
pattern
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
advmod
usually
usually
ADV
RB
root
Tense=Past|VerbForm=Part|Voice=Pass
refer
referred
VERB
VBN
obl
to
to
ADP
IN
case
as
as
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
punct
``
``
PUNCT
``
compound
Number=Sing
night
night
NOUN
NN
compound
Number=Sing
owl
owl
NOUN
NN
punct
''
''
PUNCT
''
obl
Number=Sing
schedule
schedule
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
sleep
sleep
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT This)) (VP (VP (VBZ is) (VP (VBN opposed) (PP (IN to) (NP (DT the) (`` ``) (JJ early) (NN bird) ('' '') (NN schedule))))) (, ,) (CC and) (VP (VBZ is) (NP (NP (NP (DT a) (NN kind)) (PP (IN of) (NP (NN disorder)))) (SBAR (WHADVP (WRB where)) (S (NP (DT the) (NN individual)) (VP (VBZ tends) (S (VP (TO to) (VP (VB stay) (ADVP (RB up)) (PP (ADVP (RB much)) (IN past) (NP (NN midnight)))))))))))) (. .)))
This is opposed to the "early bird" schedule, and is a kind of disorder where the individual tends to stay up much past midnight.
nsubj:pass
Number=Sing|PronType=Dem
this
This
PRON
DT
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Tense=Past|VerbForm=Part|Voice=Pass
oppose
opposed
VERB
VBN
case
to
to
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
punct
``
``
PUNCT
``
amod
Degree=Pos
early
early
ADJ
JJ
compound
Number=Sing
bird
bird
NOUN
NN
punct
''
''
PUNCT
''
obl
Number=Sing
schedule
schedule
NOUN
NN
punct
,
,
PUNCT
,
cc
and
and
CCONJ
CC
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
det
Definite=Ind|PronType=Art
a
a
DET
DT
conj
Number=Sing
kind
kind
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
disorder
disorder
NOUN
NN
advmod
PronType=Rel
where
where
ADV
WRB
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
individual
individual
NOUN
NN
acl:relcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
tend
tends
VERB
VBZ
mark
to
to
PART
TO
xcomp
VerbForm=Inf
stay
stay
VERB
VB
advmod
up
up
ADV
RB
advmod
much
much
ADV
RB
case
past
past
ADP
IN
obl
Number=Sing
midnight
midnight
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (PDT Such) (DT a) (NN person)) (VP (VBZ has) (NP (NP (JJ great) (NN difficulty)) (PP (IN in) (S (VP (VBG waking) (PRT (RP up)) (PP (IN in) (NP (DT the) (NNS mornings)))))))) (. .)))
Such a person has great difficulty in waking up in the mornings.
det:predet
such
Such
DET
PDT
det
Definite=Ind|PronType=Art
a
a
DET
DT
nsubj
Number=Sing
person
person
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
have
has
VERB
VBZ
amod
Degree=Pos
great
great
ADJ
JJ
obj
Number=Sing
difficulty
difficulty
NOUN
NN
mark
in
in
SCONJ
IN
acl
VerbForm=Ger
wake
waking
VERB
VBG
compound:prt
up
up
ADP
RP
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
morning
mornings
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (NN Research)) (VP (VBZ suggests) (SBAR (IN that) (S (NP (NN night) (NNS owls)) (VP (VP (VBP feel) (ADJP (RBS most) (NN alert))) (CC and) (VP (VBP function) (ADVP (JJS best))) (PP (PP (IN in) (NP (DT the) (NNS evenings))) (CC and) (PP (IN at) (NP (NN night)))))))) (. .)))
Research suggests that night owls feel most alert and function best in the evenings and at night.
nsubj
Number=Sing
research
Research
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
suggest
suggests
VERB
VBZ
mark
that
that
SCONJ
IN
compound
Number=Sing
night
night
NOUN
NN
nsubj
Number=Plur
owl
owls
NOUN
NNS
ccomp
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
feel
feel
VERB
VBP
advmod
Degree=Sup
most
most
ADV
RBS
xcomp
Number=Sing
alert
alert
NOUN
NN
cc
and
and
CCONJ
CC
conj
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
function
function
VERB
VBP
xcomp
Degree=Sup
good
best
ADJ
JJS
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
evening
evenings
NOUN
NNS
cc
and
and
CCONJ
CC
case
at
at
ADP
IN
conj
Number=Sing
night
night
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NN Research) (NNS findings)) (VP (VBP have) (VP (VBN shown) (SBAR (IN that) (S (NP (NP (QP (RB about) (CD 20)) (NN percent)) (PP (IN of) (NP (NNS people)))) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN as) (NP (`` ``) (NP (NN night) (NNS owls)) ('' '') (CC and) (NP (NP (QP (RB only) (CD 10)) (NN percent)) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN as) (`` ``) (NP (JJ early) (NNS birds)) ('' '')))))) (, --) (, --) (, --) (S (NP (DT the) (JJ other) (CD 70) (NN percent)) (VP (VBP are) (PP (IN in) (NP (DT the) (NN middle)))))))))))))) (. .)))
Research findings have shown that about 20 percent of people can be classified as "night owls" and only 10 percent can be classified as "early birds"------the other 70 percent are in the middle.
compound
Number=Sing
research
Research
NOUN
NN
nsubj
Number=Plur
finding
findings
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
root
Tense=Past|VerbForm=Part
show
shown
VERB
VBN
mark
that
that
SCONJ
IN
advmod
about
about
ADV
RB
nummod
NumForm=Digit|NumType=Card
20
20
NUM
CD
nsubj:pass
Number=Sing
percent
percent
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Plur
person
people
NOUN
NNS
aux
VerbForm=Fin
can
can
AUX
MD
aux:pass
VerbForm=Inf
be
be
AUX
VB
ccomp
Tense=Past|VerbForm=Part|Voice=Pass
classify
classified
VERB
VBN
case
as
as
ADP
IN
punct
``
``
PUNCT
``
compound
Number=Sing
night
night
NOUN
NN
obl
Number=Plur
owl
owls
NOUN
NNS
punct
''
''
PUNCT
''
cc
and
and
CCONJ
CC
advmod
only
only
ADV
RB
nummod
NumForm=Digit|NumType=Card
10
10
NUM
CD
nsubj:pass
Number=Sing
percent
percent
NOUN
NN
aux
VerbForm=Fin
can
can
AUX
MD
aux:pass
VerbForm=Inf
be
be
AUX
VB
conj
Tense=Past|VerbForm=Part|Voice=Pass
classify
classified
VERB
VBN
case
as
as
ADP
IN
punct
``
``
PUNCT
``
amod
Degree=Pos
early
early
ADJ
JJ
obl
Number=Plur
bird
birds
NOUN
NNS
punct
''
''
PUNCT
''
punct
--
--
PUNCT
,
punct
--
--
PUNCT
,
punct
--
--
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
other
other
ADJ
JJ
nummod
NumForm=Digit|NumType=Card
70
70
NUM
CD
nsubj
Number=Sing
percent
percent
NOUN
NN
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
parataxis
Number=Sing
middle
middle
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (SBAR (IN Although) (S (NP (DT this)) (VP (VBZ is) (ADVP (RB clearly)) (RB not) (ADJP (JJ true)) (PP (IN for) (NP (DT all) (NNS students))) (, ,) (PP (IN for) (NP (NP (DT the) (NNS ones)) (SBAR (WHNP (WP who)) (S (VP (VBP are) (NP (JJ true) (NN night) (NNS owls)))))))))) (, ,) (NP (DT this)) (VP (VBZ gives) (NP (PRP them)) (NP (NP (DT an) (JJ excellent) (NN excuse)) (PP (IN for) (S (VP (VBG missing) (NP (NP (PRP$ their) (NNS lectures)) (SBAR (WHNP (WDT which)) (S (ADVP (RB unfortunately)) (VP (VBP fall) (PP (IN before) (NP (NN midday)))))))))))) (. .)))
Although this is clearly not true for all students, for the ones who are true night owls, this gives them an excellent excuse for missing their lectures which unfortunately fall before midday.
mark
although
Although
SCONJ
IN
nsubj
Number=Sing|PronType=Dem
this
this
PRON
DT
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
advmod
clearly
clearly
ADV
RB
advmod
not
not
PART
RB
advcl
Degree=Pos
true
true
ADJ
JJ
case
for
for
ADP
IN
det
all
all
DET
DT
obl
Number=Plur
student
students
NOUN
NNS
punct
,
,
PUNCT
,
case
for
for
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
one
ones
NOUN
NNS
nsubj
PronType=Rel
who
who
PRON
WP
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
amod
Degree=Pos
true
true
ADJ
JJ
compound
Number=Sing
night
night
NOUN
NN
acl:relcl
Number=Plur
owl
owls
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Number=Sing|PronType=Dem
this
this
PRON
DT
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
give
gives
VERB
VBZ
iobj
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
det
Definite=Ind|PronType=Art
a
an
DET
DT
amod
Degree=Pos
excellent
excellent
ADJ
JJ
obj
Number=Sing
excuse
excuse
NOUN
NN
mark
for
for
SCONJ
IN
acl
VerbForm=Ger
miss
missing
VERB
VBG
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
obj
Number=Plur
lecture
lectures
NOUN
NNS
nsubj
PronType=Rel
which
which
PRON
WDT
advmod
unfortunately
unfortunately
ADV
RB
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
fall
fall
VERB
VBP
case
before
before
ADP
IN
obl
Number=Sing
midday
midday
NOUN
NN
punct
.
.
PUNCT
.
With around 100 students scheduled to be in that 9:00 am Monday morning lecture, it is no surprise that almost 20 people actually make it to the class and only 10 of them are still awake after the first 15 minutes; it is not even a surprise that most of them are still in their pajama's. Obviously, students are terrible at adjusting their sleep cycles to their daily schedule.  All human beings possess a body clock. Along with other alerting systems, this governs the sleep/wake cycle and is therefore one of the main processes which govern sleep behaviour. Typically, the preferred sleep/wake cycle is delayed in adolescents, which leads to many students not feeling sleepy until much later in the evenings. This typical sleep pattern is usually referred to as the "night owl" schedule of sleep.  This is opposed to the "early bird" schedule, and is a kind of disorder where the individual tends to stay up much past midnight. Such a person has great difficulty in waking up in the mornings. Research suggests that night owls feel most alert and function best in the evenings and at night. Research findings have shown that about 20 percent of people can be classified as "night owls" and only 10 percent can be classified as "early birds"------the other 70 percent are in the middle. Although this is clearly not true for all students, for the ones who are true night owls, this gives them an excellent excuse for missing their lectures which unfortunately fall before midday.