Have they expressed any interest in negotiating?
1	Have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux	3:aux	_
2	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
3	expressed	express	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
4	any	any	DET	DT	_	5	det	5:det	_
5	interest	interest	NOUN	NN	Number=Sing	3	obj	3:obj	_
6	in	in	SCONJ	IN	_	7	mark	7:mark	_
7	negotiating	negotiate	VERB	VBG	VerbForm=Ger	5	acl	5:acl:in	SpaceAfter=No
8	?	?	PUNCT	.	_	3	punct	3:punct	_
