As he crossed the threshold and entered the apartment, he could feel himself going blank, as if his brain had suddenly shut off.
1	As	as	SCONJ	_	_	3	mark	_	_
2	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
3	crossed	cross	VERB	PAST	Tense=Past|VerbForm=Part	13	advcl	_	_
4	the	the	DET	DEF	Definite=Def|PronType=Art	5	det	_	_
5	threshold	threshold	NOUN	SG-NOM	Number=Sing	3	obj	_	_
6	and	and	CCONJ	_	_	7	cc	_	_
7	entered	enter	VERB	PAST	Tense=Past|VerbForm=Part	3	conj	_	_
8	the	the	DET	DEF	Definite=Def|PronType=Art	9	det	_	_
9	apartment	apartment	NOUN	SG-NOM	Number=Sing	7	obj	_	SpaceAfter=No
10	,	,	PUNCT	Comma	_	3	punct	_	_
11	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	_
12	could	could	AUX	PAST-AUX	VerbForm=Fin	13	aux	_	_
13	feel	feel	VERB	INF	VerbForm=Inf	0	root	_	_
14	himself	he	PRON	RFL-P3SG	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs|Reflex=Yes	13	obj	_	_
15	going	go	VERB	ING	Tense=Pres|VerbForm=Part	13	xcomp	_	_
16	blank	blank	ADJ	POS	Degree=Pos	15	xcomp	_	SpaceAfter=No
17	,	,	PUNCT	Comma	_	24	punct	_	_
18	as	as	SCONJ	_	_	24	mark	_	_
19	if	if	SCONJ	_	_	18	fixed	_	_
20	his	he	PRON	P3SG-GEN	Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	21	nmod:poss	_	_
21	brain	brain	NOUN	SG-NOM	Number=Sing	24	nsubj	_	_
22	had	have	AUX	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	24	aux	_	_
23	suddenly	sudden	ADV	_	_	24	advmod	_	_
24	shut	shut	VERB	PERF	Case=Nom	13	advcl	_	_
25	off	off	ADV	_	_	24	advmod	_	SpaceAfter=No
26	.	.	PUNCT	Period	_	13	punct	_	_
