He began postdoctoral research at Helsinki in 2012.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	2	nsubj	2:nsubj	Discourse=joint-sequence_m:34->33:0|Entity=(1-person-giv:act-cf1*-1-ana)
2	began	begin	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	postdoctoral	postdoctoral	ADJ	JJ	Degree=Pos	4	amod	4:amod	Entity=(50-abstract-new-cf3-2-sgl
4	research	research	NOUN	NN	Number=Sing	2	obj	2:obj	Entity=50)
5	at	at	ADP	IN	_	6	case	6:case	_
6	Helsinki	Helsinki	PROPN	NNP	Number=Sing	2	obl	2:obl:at	Entity=(10-organization-giv:inact-cf2-1-coref-University_of_Helsinki)
7	in	in	ADP	IN	_	8	case	8:case	_
8	2012	2012	NUM	CD	NumForm=Digit|NumType=Card	2	obl	2:obl:in	Entity=(51-time-new-cf4-1-sgl)|SpaceAfter=No|XML=<date when:::"2012"></date>
9	.	.	PUNCT	.	_	2	punct	2:punct	_
