He believes memos and e-mails around the time of Winter's Dec. 8 actions should provide vital clues.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	2	nsubj	2:nsubj	_
2	believes	believe	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	memos	memo	NOUN	NNS	Number=Plur	16	nsubj	16:nsubj	_
4	and	and	CCONJ	CC	_	5	cc	5:cc	_
5	e-mails	e-mail	NOUN	NNS	Number=Plur	3	conj	3:conj:and|16:nsubj	_
6	around	around	ADP	IN	_	8	case	8:case	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	_
8	time	time	NOUN	NN	Number=Sing	3	nmod	3:nmod:around	_
9	of	of	ADP	IN	_	14	case	14:case	_
10-11	Winter's	_	_	_	_	_	_	_	_
10	Winter	Winter	PROPN	NNP	Number=Sing	14	nmod:poss	14:nmod:poss	_
11	's	's	PART	POS	_	10	case	10:case	_
12	Dec.	December	PROPN	NNP	Abbr=Yes|Number=Sing	14	compound	14:compound	_
13	8	8	NUM	CD	NumForm=Digit|NumType=Card	12	nummod	12:nummod	_
14	actions	action	NOUN	NNS	Number=Plur	8	nmod	8:nmod:of	_
15	should	should	AUX	MD	VerbForm=Fin	16	aux	16:aux	_
16	provide	provide	VERB	VB	VerbForm=Inf	2	ccomp	2:ccomp	_
17	vital	vital	ADJ	JJ	Degree=Pos	18	amod	18:amod	_
18	clues	clue	NOUN	NNS	Number=Plur	16	obj	16:obj	SpaceAfter=No
19	.	.	PUNCT	.	_	2	punct	2:punct	_
