Dennis played the guitar while Matthew played the piano, so he played the keys when practicing.
Dennis played the guitar while Matthew played the piano, so he played the keys when practicing.
nsubj
Number=Sing
Dennis
(1)
Dennis
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
play
-
played
VERB
VBD
det
Definite=Def|PronType=Art
the
-
the
DET
DT
obj
Number=Sing
guitar
-
guitar
NOUN
NN
mark
while
-
while
SCONJ
IN
nsubj
Number=Sing
Matthew
(0)
Matthew
PROPN
NNP
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
play
-
played
VERB
VBD
det
Definite=Def|PronType=Art
the
-
the
DET
DT
obj
Number=Sing
piano
-
piano
NOUN
NN
punct
,
-
,
PUNCT
,
advmod
so
-
so
ADV
RB
nsubj
Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs
he
(0)
he
PRON
PRP
parataxis
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
play
-
played
VERB
VBD
det
Definite=Def|PronType=Art
the
-
the
DET
DT
obj
Number=Plur
key
-
keys
NOUN
NNS
mark
PronType=Int
when
-
when
SCONJ
WRB
advcl
VerbForm=Ger
practice
-
practicing
VERB
VBG
punct
.
-
.
PUNCT
.