He wasn't unpleasant about it, but he just changed the subject and wouldn't talk about it.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj	_
2-3	wasn't	_	_	_	_	_	_	_	_
2	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	cop	4:cop	_
3	n't	not	PART	RB	_	4	advmod	4:advmod	_
4	unpleasant	unpleasant	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	about	about	ADP	IN	_	6	case	6:case	_
6	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	obl	4:obl:about	SpaceAfter=No
7	,	,	PUNCT	,	_	11	punct	11:punct	_
8	but	but	CCONJ	CC	_	11	cc	11:cc	_
9	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	11	nsubj	11:nsubj|17:nsubj	_
10	just	just	ADV	RB	_	11	advmod	11:advmod	_
11	changed	change	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	conj	4:conj:but	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	13:det	_
13	subject	subject	NOUN	NN	Number=Sing	11	obj	11:obj	_
14	and	and	CCONJ	CC	_	17	cc	17:cc	_
15-16	wouldn't	_	_	_	_	_	_	_	_
15	would	would	AUX	MD	VerbForm=Fin	17	aux	17:aux	_
16	n't	not	PART	RB	_	17	advmod	17:advmod	_
17	talk	talk	VERB	VB	VerbForm=Inf	11	conj	11:conj:and	_
18	about	about	ADP	IN	_	19	case	19:case	_
19	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	17	obl	17:obl:about	SpaceAfter=No
20	.	.	PUNCT	.	_	4	punct	4:punct	_
