That's a great idea.
1-2	That's	_	_	_	_	_	_	_	_
1	That	that	PRON	DT	Number=Sing|PronType=Dem	5	nsubj	5:nsubj	Discourse=evaluation-comment:158->155:1|Entity=(44-event-giv:inact-cf1-1-coref)
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	5:cop	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	5:det	Entity=(44-event-giv:act-cf1-3-coref
4	great	great	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	idea	idea	NOUN	NN	Number=Sing	0	root	0:root	Entity=44)|SpaceAfter=No
6	.	.	PUNCT	.	_	5	punct	5:punct	_
