(ROOT (S (NP (NP (DT A) (JJ normal) (NN conversation)) (PP (IN between) (NP (NNS strangers)))) (VP (VBZ involves) (NP (ADVP (JJR more)) (PP (IN than) (NP (NN talk))))) (. .)))
A normal conversation between strangers involves more than talk.
det
Definite=Ind|PronType=Art
a
A
DET
DT
amod
Degree=Pos
normal
normal
ADJ
JJ
nsubj
Number=Sing
conversation
conversation
NOUN
NN
case
between
between
ADP
IN
nmod
Number=Plur
stranger
strangers
NOUN
NNS
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
involve
involves
VERB
VBZ
obj
Degree=Cmp
more
more
ADJ
JJR
case
than
than
ADP
IN
obl
Number=Sing
talk
talk
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP It)) (ADVP (RB also)) (VP (VBZ involves) (NP (NP (DT the) (NNS dynamics)) (PP (IN of) (NP (NN space) (NN interaction))))) (. .)))
It also involves the dynamics of space interaction.
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
It
PRON
PRP
advmod
also
also
ADV
RB
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
involve
involves
VERB
VBZ
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Plur
dynamic
dynamics
NOUN
NNS
case
of
of
ADP
IN
compound
Number=Sing
space
space
NOUN
NN
nmod
Number=Sing
interaction
interaction
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (SBAR (IN If) (S (NP (CD one) (NN person)) (VP (VBZ gets) (ADJP (RB too) (JJ close))))) (, ,) (NP (DT the) (JJ other) (NN person)) (VP (MD will) (VP (VB back) (PRT (RP up)))) (. .)))
If one person gets too close, the other person will back up.
mark
if
If
SCONJ
IN
nummod
NumForm=Word|NumType=Card
one
one
NUM
CD
nsubj
Number=Sing
person
person
NOUN
NN
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
get
gets
VERB
VBZ
advmod
too
too
ADV
RB
xcomp
Degree=Pos
close
close
ADJ
JJ
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
other
other
ADJ
JJ
nsubj
Number=Sing
person
person
NOUN
NN
aux
VerbForm=Fin
will
will
AUX
MD
root
VerbForm=Inf
back
back
VERB
VB
compound:prt
up
up
ADP
RP
punct
.
.
PUNCT
.
(ROOT (S (SBAR (IN If) (S (NP (DT the) (JJ first) (NN person)) (VP (VBZ invades) (NP (NP (DT the) (NN other) (POS 's)) (NN space)) (ADVP (RB again))))) (, ,) (NP (DT the) (JJ other) (NN person)) (VP (MD will) (VP (VB back) (PRT (RP up)) (ADVP (RB again)))) (. .)))
If the first person invades the other's space again, the other person will back up again.
mark
if
If
SCONJ
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
first
first
ADJ
JJ
nsubj
Number=Sing
person
person
NOUN
NN
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
invade
invades
VERB
VBZ
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod:poss
Number=Sing
other
other
NOUN
NN
case
's
's
PART
POS
obj
Number=Sing
space
space
NOUN
NN
advmod
again
again
ADV
RB
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
other
other
ADJ
JJ
nsubj
Number=Sing
person
person
NOUN
NN
aux
VerbForm=Fin
will
will
AUX
MD
root
VerbForm=Inf
back
back
VERB
VB
compound:prt
up
up
ADP
RP
advmod
again
again
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (DT The) (NN person)) (SBAR (WHNP (WP who)) (S (VP (VBZ finds) (S (NP (PRP himself) (CC or) (PRP herself)) (VP (VBG backing) (PRT (RP up)))))))) (VP (VBZ is) (VP (VBG trying) (S (VP (TO to) (VP (VB increase) (NP (NP (DT the) (NN distance)) (PP (IN of) (NP (DT the) (NN comfort) (NN zone))))))))) (. .)))
The person who finds himself or herself backing up is trying to increase the distance of the comfort zone.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
person
person
NOUN
NN
nsubj
PronType=Rel
who
who
PRON
WP
acl:relcl
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
find
finds
VERB
VBZ
obj
Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs|Reflex=Yes
himself
himself
PRON
PRP
cc
or
or
CCONJ
CC
conj
Case=Acc|Gender=Fem|Number=Sing|Person=3|PronType=Prs|Reflex=Yes
herself
herself
PRON
PRP
xcomp
VerbForm=Ger
back
backing
VERB
VBG
compound:prt
up
up
ADP
RP
aux
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Tense=Pres|VerbForm=Part
try
trying
VERB
VBG
mark
to
to
PART
TO
xcomp
VerbForm=Inf
increase
increase
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
distance
distance
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
comfort
comfort
NOUN
NN
nmod
Number=Sing
zone
zone
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (DT The) (NN person)) (VP (VBG closing) (ADVP (RP in)))) (VP (VBZ is) (VP (VBG trying) (S (VP (TO to) (VP (VB decrease) (NP (DT that) (NN distance))))))) (. .)))
The person closing in is trying to decrease that distance.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
person
person
NOUN
NN
acl
VerbForm=Ger
close
closing
VERB
VBG
compound:prt
in
in
ADP
RP
aux
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
root
Tense=Pres|VerbForm=Part
try
trying
VERB
VBG
mark
to
to
PART
TO
xcomp
VerbForm=Inf
decrease
decrease
VERB
VB
det
Number=Sing|PronType=Dem
that
that
DET
DT
obj
Number=Sing
distance
distance
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (ADJP (ADJP (RBS Most) (JJ likely)) (NP (DT neither) (NN person)) (VP (VBZ is) (ADJP (RB fully) (JJ aware) (PP (IN of) (SBAR (WHNP (WP what)) (S (VP (VBZ is) (VP (VBG going) (PRT (RP on))))))))) (. .)))
Most likely neither person is fully aware of what is going on.
advmod
Degree=Sup
most
Most
ADV
RBS
advcl
Degree=Pos
likely
likely
ADJ
JJ
det
neither
neither
DET
DT
nsubj
Number=Sing
person
person
NOUN
NN
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
advmod
fully
fully
ADV
RB
root
Degree=Pos
aware
aware
ADJ
JJ
case
of
of
ADP
IN
obl
PronType=Rel
what
what
PRON
WP
aux
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
acl:relcl
Tense=Pres|VerbForm=Part
go
going
VERB
VBG
compound:prt
on
on
ADP
RP
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN In) (NP (DT the) (NNS 1960s))) (, ,) (NP (NML (JJ American) (NN anthropologist)) (NNP Edward) (NNP T.) (NNP Hall)) (VP (VBD was) (NP (NP (DT a) (NN pioneer)) (PP (IN in) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NP (JJ human) (JJ behavioral) (NN use)) (PP (IN of) (NP (NN space))))))))) (. .)))
In the 1960s, American anthropologist Edward T. Hall was a pioneer in the study of human behavioral use of space.
case
in
In
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
1960s
1960s
NOUN
NNS
punct
,
,
PUNCT
,
amod
Degree=Pos
American
American
ADJ
JJ
nsubj
Number=Sing
anthropologist
anthropologist
NOUN
NN
flat
Number=Sing
Edward
Edward
PROPN
NNP
flat
Number=Sing
T.
T.
PROPN
NNP
flat
Number=Sing
Hall
Hall
PROPN
NNP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
det
Definite=Ind|PronType=Art
a
a
DET
DT
root
Number=Sing
pioneer
pioneer
NOUN
NN
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
study
study
NOUN
NN
case
of
of
ADP
IN
amod
Degree=Pos
human
human
ADJ
JJ
amod
Degree=Pos
behavioral
behavioral
ADJ
JJ
nmod
Number=Sing
use
use
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
space
space
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (PRP$ His) (NN field)) (PP (IN of) (NP (NN study)))) (VP (VBD became) (VP (VBN known) (PP (IN as) (NP (NNS proxemics))))) (. .)))
His field of study became known as proxemics.
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
His
PRON
PRP$
nsubj
Number=Sing
field
field
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
study
study
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
become
became
VERB
VBD
xcomp
Tense=Past|VerbForm=Part
know
known
VERB
VBN
case
as
as
ADP
IN
obl
Number=Plur
proxemic
proxemics
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (NNP Hall)) (VP (VBD said) (SBAR (IN that) (S (NP (NP (JJ personal) (NN space)) (PP (IN for) (NP (NP (NNS people)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States)))))) (VP (MD can) (VP (VB be) (VP (VBN defined) (PP (IN as) (S (VP (VBG having) (NP (NP (CD four) (JJ distinct) (NNS zones)) (: :) (NP (NP (NP (NP (DT the) (JJ intimate) (NN zone)) (PP (IN within) (NP (NP (CD 18) (NNS inches)) (PP (IN of) (NP (PRP$ your) (NN body)))))) (, ,) (PP (IN for) (S (VP (VBG whispering) (CC and) (VBG embracing))))) (: ;) (NP (NP (DT the) (JJ personal) (NN zone)) (PP (IN of) (NP (QP (CD 18) (NNS inches) (IN to) (CD four)) (NNS feet)))) (, ,) (PP (IN for) (S (VP (VBG talking) (PP (IN with) (NP (JJ close) (NNS friends)))))) (: ;) (NP (NP (DT the) (JJ social) (NN zone)) (PP (IN of) (NP (QP (CD four) (IN to) (CD 10)) (NNS feet))) (, ,) (PP (IN for) (S (VP (VBG conversing) (PP (IN with) (NP (NNS acquaintances))))))) (: ;) (CC and) (NP (NP (DT the) (JJ public) (NN zone)) (PP (IN of) (NP (QP (CD 10) (IN to) (CD 25)) (NNS feet)))) (, ,) (PP (IN for) (S (VP (VP (VBG interacting) (PP (IN with) (NP (NNS strangers)))) (CC or) (VP (VBG talking) (PP (IN to) (NP (DT a) (NN group)))))))))))))))))) (. .)))
Hall said that personal space for people in the United States can be defined as having four distinct zones: the intimate zone within 18 inches of your body, for whispering and embracing; the personal zone of 18 inches to four feet, for talking with close friends; the social zone of four to 10 feet, for conversing with acquaintances; and the public zone of 10 to 25 feet, for interacting with strangers or talking to a group.
nsubj
Number=Sing
Hall
Hall
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
say
said
VERB
VBD
mark
that
that
SCONJ
IN
amod
Degree=Pos
personal
personal
ADJ
JJ
nsubj:pass
Number=Sing
space
space
NOUN
NN
case
for
for
ADP
IN
nmod
Number=Plur
person
people
NOUN
NNS
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
United
United
ADJ
NNP
nmod
Number=Plur
State
States
PROPN
NNPS
aux
VerbForm=Fin
can
can
AUX
MD
aux:pass
VerbForm=Inf
be
be
AUX
VB
ccomp
Tense=Past|VerbForm=Part|Voice=Pass
define
defined
VERB
VBN
mark
as
as
SCONJ
IN
advcl
VerbForm=Ger
have
having
VERB
VBG
nummod
NumForm=Word|NumType=Card
four
four
NUM
CD
amod
Degree=Pos
distinct
distinct
ADJ
JJ
obj
Number=Plur
zone
zones
NOUN
NNS
punct
:
:
PUNCT
:
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
intimate
intimate
ADJ
JJ
appos
Number=Sing
zone
zone
NOUN
NN
case
within
within
ADP
IN
nummod
NumForm=Digit|NumType=Card
18
18
NUM
CD
nmod
Number=Plur
inch
inches
NOUN
NNS
case
of
of
ADP
IN
nmod:poss
Case=Gen|Person=2|Poss=Yes|PronType=Prs
your
your
PRON
PRP$
nmod
Number=Sing
body
body
NOUN
NN
punct
,
,
PUNCT
,
mark
for
for
SCONJ
IN
conj
VerbForm=Ger
whisper
whispering
VERB
VBG
cc
and
and
CCONJ
CC
conj
VerbForm=Ger
embrace
embracing
VERB
VBG
punct
;
;
PUNCT
:
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
personal
personal
ADJ
JJ
conj
Number=Sing
zone
zone
NOUN
NN
case
of
of
ADP
IN
nummod
NumForm=Digit|NumType=Card
18
18
NUM
CD
nmod
Number=Plur
inch
inches
NOUN
NNS
case
to
to
ADP
IN
nummod
NumForm=Word|NumType=Card
four
four
NUM
CD
nmod
Number=Plur
foot
feet
NOUN
NNS
punct
,
,
PUNCT
,
mark
for
for
SCONJ
IN
conj
VerbForm=Ger
talk
talking
VERB
VBG
case
with
with
ADP
IN
amod
Degree=Pos
close
close
ADJ
JJ
obl
Number=Plur
friend
friends
NOUN
NNS
punct
;
;
PUNCT
:
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
social
social
ADJ
JJ
appos
Number=Sing
zone
zone
NOUN
NN
case
of
of
ADP
IN
nummod
NumForm=Word|NumType=Card
four
four
NUM
CD
case
to
to
ADP
IN
nmod
NumForm=Digit|NumType=Card
10
10
NUM
CD
nmod
Number=Plur
foot
feet
NOUN
NNS
punct
,
,
PUNCT
,
mark
for
for
SCONJ
IN
advcl
VerbForm=Ger
converse
conversing
VERB
VBG
case
with
with
ADP
IN
obl
Number=Plur
acquaintance
acquaintances
NOUN
NNS
punct
;
;
PUNCT
:
cc
and
and
CCONJ
CC
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
public
public
ADJ
JJ
conj
Number=Sing
zone
zone
NOUN
NN
case
of
of
ADP
IN
nummod
NumForm=Digit|NumType=Card
10
10
NUM
CD
case
to
to
ADP
IN
nmod
NumForm=Digit|NumType=Card
25
25
NUM
CD
nmod
Number=Plur
foot
feet
NOUN
NNS
punct
,
,
PUNCT
,
mark
for
for
SCONJ
IN
acl
VerbForm=Ger
interact
interacting
VERB
VBG
case
with
with
ADP
IN
obl
Number=Plur
stranger
strangers
NOUN
NNS
cc
or
or
CCONJ
CC
conj
VerbForm=Ger
talk
talking
VERB
VBG
case
to
to
ADP
IN
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl
Number=Sing
group
group
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NNS Historians)) (VP (VBP say) (SBAR (IN that) (S (NP (NP (PRP$ our) (NNS standards)) (PP (IN of) (NP (JJ personal) (NN space)))) (VP (VBD began) (PP (IN with) (NP (NP (DT the) (NNP Industrial) (NNP Revolution)) (PP (IN in) (NP (DT the) (NN 18thcentury))))))))) (. .)))
Historians say that our standards of personal space began with the Industrial Revolution in the 18thcentury.
nsubj
Number=Plur
historian
Historians
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
say
say
VERB
VBP
mark
that
that
SCONJ
IN
nmod:poss
Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs
our
our
PRON
PRP$
nsubj
Number=Plur
standard
standards
NOUN
NNS
case
of
of
ADP
IN
amod
Degree=Pos
personal
personal
ADJ
JJ
nmod
Number=Sing
space
space
NOUN
NN
ccomp
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
begin
began
VERB
VBD
case
with
with
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
Industrial
Industrial
ADJ
NNP
obl
Number=Sing
Revolution
Revolution
PROPN
NNP
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
18thcentury
18thcentury
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (PP (IN In) (NP (NP (NNS cities)) (PP (JJ such) (IN as) (NP (NP (NNP London)) (CC and) (NP (NNP New) (NNP York)))))) (, ,) (S (NP (NP (NNS people)) (PP (IN of) (NP (JJ different) (ADJP (JJ social) (CC and) (JJ economic)) (NNS classes)))) (VP (VBD were) (ADVP (RB suddenly)) (VP (VBN crammed) (ADVP (RB together))))) (, ,) (RB so) (S (NP (PRP they)) (ADVP (RB unconsciously)) (VP (VBD developed) (NP (NP (NP (DT a) (ADJP (RB commonly) (VBN understood)) (NN code)) (PP (IN of) (NP (NN courtesy)))) (SBAR (S (VP (TO to) (VP (VB restrict) (NP (DT the) (NN space)) (PP (IN around) (NP (PRP them)))))))))) (. .)))
In cities such as London and New York, people of different social and economic classes were suddenly crammed together, so they unconsciously developed a commonly understood code of courtesy to restrict the space around them.
case
in
In
ADP
IN
obl
Number=Plur
city
cities
NOUN
NNS
case
Degree=Pos
such
such
ADJ
JJ
fixed
as
as
ADP
IN
nmod
Number=Sing
London
London
PROPN
NNP
cc
and
and
CCONJ
CC
conj
Degree=Pos
New
New
ADJ
NNP
flat
Number=Sing
York
York
PROPN
NNP
punct
,
,
PUNCT
,
nsubj:pass
Number=Plur
person
people
NOUN
NNS
case
of
of
ADP
IN
amod
Degree=Pos
different
different
ADJ
JJ
amod
Degree=Pos
social
social
ADJ
JJ
cc
and
and
CCONJ
CC
conj
Degree=Pos
economic
economic
ADJ
JJ
nmod
Number=Plur
class
classes
NOUN
NNS
aux:pass
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
advmod
suddenly
suddenly
ADV
RB
root
Tense=Past|VerbForm=Part|Voice=Pass
cram
crammed
VERB
VBN
advmod
together
together
ADV
RB
punct
,
,
PUNCT
,
advmod
so
so
ADV
RB
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
advmod
unconsciously
unconsciously
ADV
RB
parataxis
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
develop
developed
VERB
VBD
det
Definite=Ind|PronType=Art
a
a
DET
DT
advmod
Degree=Pos
commonly
commonly
ADV
RB
amod
Tense=Past|VerbForm=Part
understand
understood
VERB
VBN
obj
Number=Sing
code
code
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
courtesy
courtesy
NOUN
NN
mark
to
to
PART
TO
advcl
VerbForm=Inf
restrict
restrict
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
space
space
NOUN
NN
case
around
around
ADP
IN
obl
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NNS People)) (VP (VBP exhibit) (NP (NP (JJ nonverbal) (NNS messages)) (PP (IN of) (NP (NN discomfort)))) (SBAR (WHADVP (WRB when)) (S (NP (PRP$ their) (NNS zones)) (VP (VBP are) (VP (VBN violated)))))) (. .)))
People exhibit nonverbal messages of discomfort when their zones are violated.
nsubj
Number=Plur
person
People
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
exhibit
exhibit
VERB
VBP
amod
Degree=Pos
nonverbal
nonverbal
ADJ
JJ
obj
Number=Plur
message
messages
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Sing
discomfort
discomfort
NOUN
NN
advmod
PronType=Int
when
when
ADV
WRB
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nsubj:pass
Number=Plur
zone
zones
NOUN
NNS
aux:pass
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advcl
Tense=Past|VerbForm=Part|Voice=Pass
violate
violated
VERB
VBN
punct
.
.
PUNCT
.
(ROOT (S (NP (VBN Invaded) (NNS people)) (VP (MD might) (VP (VP (VB tap) (NP (PRP$ their) (NNS toes))) (, ,) (VP (VB pull) (PP (IN at) (NP (PRP$ their) (NN hair)))) (, ,) (VP (VB become) (ADJP (RB completely) (JJ rigid))) (, ,) (CC or) (ADVP (RB even)) (VP (VB become) (ADJP (JJ angry))))) (. .)))
Invaded people might tap their toes, pull at their hair, become completely rigid, or even become angry.
amod
Tense=Past|VerbForm=Part
invade
Invaded
VERB
VBN
nsubj
Number=Plur
person
people
NOUN
NNS
aux
VerbForm=Fin
might
might
AUX
MD
root
VerbForm=Inf
tap
tap
VERB
VB
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
obj
Number=Plur
toe
toes
NOUN
NNS
punct
,
,
PUNCT
,
conj
VerbForm=Inf
pull
pull
VERB
VB
case
at
at
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
obl
Number=Sing
hair
hair
NOUN
NN
punct
,
,
PUNCT
,
conj
VerbForm=Inf
become
become
VERB
VB
advmod
completely
completely
ADV
RB
xcomp
Degree=Pos
rigid
rigid
ADJ
JJ
punct
,
,
PUNCT
,
cc
or
or
CCONJ
CC
advmod
even
even
ADV
RB
conj
VerbForm=Inf
become
become
VERB
VB
xcomp
Degree=Pos
angry
angry
ADJ
JJ
punct
.
.
PUNCT
.
(ROOT (S (SBAR (IN As) (S (NP (NN hall)) (VP (VBD noted) (PP (IN in) (NP (PRP$ his) (JJ landmark) (NN work)))))) (, ,) (NP (DT a) (JJ comfortable) (NN conversation)) (VP (VBZ needs) (S (VP (TO to) (VP (VB include) (NP (NP (DT the) (NNS parameters)) (PP (IN of) (NP (JJ human) (JJ personal) (NN space)))))))) (. .)))
As hall noted in his landmark work, a comfortable conversation needs to include the parameters of human personal space.
mark
as
As
SCONJ
IN
nsubj
Number=Sing
hall
hall
NOUN
NN
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
note
noted
VERB
VBD
case
in
in
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
amod
Degree=Pos
landmark
landmark
ADJ
JJ
obl
Number=Sing
work
work
NOUN
NN
punct
,
,
PUNCT
,
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
comfortable
comfortable
ADJ
JJ
nsubj
Number=Sing
conversation
conversation
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
need
needs
VERB
VBZ
mark
to
to
PART
TO
xcomp
VerbForm=Inf
include
include
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Plur
parameter
parameters
NOUN
NNS
case
of
of
ADP
IN
amod
Degree=Pos
human
human
ADJ
JJ
amod
Degree=Pos
personal
personal
ADJ
JJ
nmod
Number=Sing
space
space
NOUN
NN
punct
.
.
PUNCT
.
A normal conversation between strangers involves more than talk. It also involves the dynamics of space interaction. If one person gets too close, the other person will back up. If the first person invades the other's space again, the other person will back up again. The person who finds himself or herself backing up is trying to increase the distance of the comfort zone. The person closing in is trying to decrease that distance. Most likely neither person is fully aware of what is going on.  In the 1960s, American anthropologist Edward T. Hall was a pioneer in the study of human behavioral use of space. His field of study became known as proxemics. Hall said that personal space for people in the United States can be defined as having four distinct zones: the intimate zone within 18 inches of your body, for whispering and embracing; the personal zone of 18 inches to four feet, for talking with close friends; the social zone of four to 10 feet, for conversing with acquaintances; and the public zone of 10 to 25 feet, for interacting with strangers or talking to a group.  Historians say that our standards of personal space began with the Industrial Revolution in the 18thcentury. In cities such as London and New York, people of different social and economic classes were suddenly crammed together, so they unconsciously developed a commonly understood code of courtesy to restrict the space around them.  People exhibit nonverbal messages of discomfort when their zones are violated. Invaded people might tap their toes, pull at their hair, become completely rigid, or even become angry. As hall noted in his landmark work, a comfortable conversation needs to include the parameters of human personal space.