It was three years between recovery of specimens and final publication, why did it take so long?
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj	Discourse=context-background:114->115:0
2	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	cop	4:cop	_
3	three	three	NUM	CD	NumForm=Word|NumType=Card	4	nummod	4:nummod	Entity=(120-time-new-cf3-2-sgl
4	years	year	NOUN	NNS	Number=Plur	0	root	0:root	Entity=120)
5	between	between	ADP	IN	_	6	case	6:case	_
6	recovery	recovery	NOUN	NN	Number=Sing	4	nmod	4:nmod:between	Entity=(121-event-new-cf4-1-sgl
7	of	of	ADP	IN	_	8	case	8:case	_
8	specimens	specimen	NOUN	NNS	Number=Plur	6	nmod	6:nmod:of	Entity=(52-object-giv:inact-cf2-1-coref)121)
9	and	and	CCONJ	CC	_	11	cc	11:cc	_
10	final	final	ADJ	JJ	Degree=Pos	11	amod	11:amod	Bridge=106<122|Entity=(122-event-acc:inf-cf1-2-coref
11	publication	publication	NOUN	NN	Number=Sing	6	conj	4:nmod:between|6:conj:and	Entity=122)|SpaceAfter=No
12	,	,	PUNCT	,	_	16	punct	16:punct	_
13	why	why	ADV	WRB	PronType=Int	16	advmod	16:advmod	Discourse=topic-question:115->119:3
14	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	16	aux	16:aux	_
15	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	16	nsubj	16:nsubj	Entity=(122-event-giv:act-cf1-1-ana)
16	take	take	VERB	VB	VerbForm=Inf	4	parataxis	4:parataxis	_
17	so	so	ADV	RB	_	18	advmod	18:advmod	_
18	long	long	ADV	RB	Degree=Pos	16	advmod	16:advmod	SpaceAfter=No
19	?	?	PUNCT	.	_	4	punct	4:punct	_
