The short answer is that we don't know.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	3:det	Bridge=105<106|Discourse=elaboration-additional:95->77:5|Entity=(106-abstract-acc:inf-cf2-3-sgl
2	short	short	ADJ	JJ	Degree=Pos	3	amod	3:amod	_
3	answer	answer	NOUN	NN	Number=Sing	9	nsubj:outer	9:nsubj:outer	Entity=106)
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	9:cop	_
5	that	that	SCONJ	IN	_	9	mark	9:mark	_
6	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	9	nsubj	9:nsubj	Entity=(51-person-giv:inact-cf1-1-ana)
7-8	don't	_	_	_	_	_	_	_	_
7	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	9	aux	9:aux	_
8	n't	not	PART	RB	Polarity=Neg	9	advmod	9:advmod	_
9	know	know	VERB	VB	VerbForm=Inf	0	root	0:root	SpaceAfter=No
10	.	.	PUNCT	.	_	9	punct	9:punct	_
