Harry's mouth fell open as the full impact of what he was seeing hit him.
1	Harry	Harry	PROPN	SG	Number=Sing	3	nmod:poss	_	SpaceAfter=No
2	's	's	PART	GEN	_	1	case	_	_
3	mouth	mouth	NOUN	SG-NOM	Number=Sing	4	nsubj	_	_
4	fell	fall	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	0	root	_	_
5	open	open	ADJ	POS	Degree=Pos	4	xcomp	_	_
6	as	as	SCONJ	_	_	15	mark	_	_
7	the	the	DET	DEF	Definite=Def|PronType=Art	14	det	_	_
8	full	full	ADJ	POS	Degree=Pos	14	amod	_	_
9	impact	impact	NOUN	SG-NOM	Number=Sing	15	nsubj	_	_
10	of	of	ADP	_	_	14	amod	_	_
11	what	what	PRON	WH	PronType=Int	14	obj	_	_
12	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	14	nsubj	_	_
13	was	be	AUX	PAST	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	14	aux	_	_
14	seeing	see	VERB	ING	Tense=Pres|VerbForm=Part	15	advcl	_	_
15	hit	hit	VERB	PAST	Mood=Ind|Tense=Pres|VerbForm=Fin	4	advcl	_	_
16	him	he	PRON	PERS-P3SG-ACC	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs	15	obj	_	SpaceAfter=No
17	.	.	PUNCT	Period	_	4	punct	_	_
