What sort of difficulties were posed by the unorthodox preservatives used, and what additional work might be possible on a specimen with intact DNA?
1	What	what	DET	WDT	PronType=Int	2	det	2:det	Discourse=topic-question:130->133:2
2	sort	sort	NOUN	NN	Number=Sing	6	nsubj:pass	6:nsubj:pass	_
3	of	of	ADP	IN	_	4	case	4:case	_
4	difficulties	difficulty	NOUN	NNS	Number=Plur	2	nmod	2:nmod:of	Entity=(139-abstract-new-cf4-1-sgl)
5	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	6	aux:pass	6:aux:pass	_
6	posed	pose	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	0:root	_
7	by	by	ADP	IN	_	10	case	10:case	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	Bridge=55<140|Entity=(140-substance-acc:inf-cf2-3-sgl
9	unorthodox	unorthodox	ADJ	JJ	Degree=Pos|Polarity=Neg	10	amod	10:amod	_
10	preservatives	preservative	NOUN	NNS	Number=Plur	6	obl:agent	6:obl:agent	Entity=140)
11	used	use	VERB	VBN	Tense=Past|VerbForm=Part	10	acl	10:acl	Discourse=elaboration-attribute:131->130:0|SpaceAfter=No
12	,	,	PUNCT	,	_	19	punct	19:punct	_
13	and	and	CCONJ	CC	_	19	cc	19:cc	Discourse=joint-list_m:132->130:1
14	what	what	DET	WDT	PronType=Int	16	det	16:det	_
15	additional	additional	ADJ	JJ	Degree=Pos	16	amod	16:amod	Entity=(141-abstract-new-cf3-2-sgl
16	work	work	NOUN	NN	Number=Sing	19	nsubj	19:nsubj	Entity=141)
17	might	might	AUX	MD	VerbForm=Fin	19	aux	19:aux	_
18	be	be	AUX	VB	VerbForm=Inf	19	cop	19:cop	_
19	possible	possible	ADJ	JJ	Degree=Pos	6	conj	6:conj:and	_
20	on	on	ADP	IN	_	22	case	22:case	_
21	a	a	DET	DT	Definite=Ind|PronType=Art	22	det	22:det	Entity=(142-object-new-cf5-2-coref
22	specimen	specimen	NOUN	NN	Number=Sing	19	obl	19:obl:on	_
23	with	with	ADP	IN	_	25	case	25:case	_
24	intact	intact	ADJ	JJ	Degree=Pos	25	amod	25:amod	_
25	DNA	DNA	NOUN	NN	Abbr=Yes|Number=Sing	22	nmod	22:nmod:with	Entity=(60-substance-giv:inact-cf1-1-coref-DNA)142)|SpaceAfter=No
26	?	?	PUNCT	.	_	6	punct	6:punct	_
