Since there could be no reason for me to be unhappy, unhappiness must be the human condition.
1	Since	since	SCONJ	_	_	4	mark	_	_
2	there	there	PRON	EX	_	4	expl	_	_
3	could	could	AUX	PAST-AUX	VerbForm=Fin	4	aux	_	_
4	be	be	VERB	INF	VerbForm=Inf	18	advcl	_	_
5	no	no	DET	NEG	_	6	advmod	_	_
6	reason	reason	NOUN	SG-NOM	Number=Sing	4	nsubj	_	_
7	for	for	SCONJ	_	_	11	mark	_	_
8	me	I	PRON	PERS-P1SG-ACC	Case=Acc|Number=Sing|Person=1|PronType=Prs	11	nsubj	_	_
9	to	to	PART	_	_	11	mark	_	_
10	be	be	AUX	INF	VerbForm=Inf	11	cop	_	_
11	unhappy	unhappy	ADJ	POS	Degree=Pos	4	xcomp	_	SpaceAfter=No
12	,	,	PUNCT	Comma	_	4	punct	_	_
13	unhappiness	unhappiness	NOUN	SG-NOM	Number=Sing	18	nsubj	_	_
14	must	must	AUX	PRES-AUX	VerbForm=Fin	18	aux	_	_
15	be	be	AUX	INF	VerbForm=Inf	18	cop	_	_
16	the	the	DET	DEF	Definite=Def|PronType=Art	18	det	_	_
17	human	human	ADJ	POS	Degree=Pos	18	amod	_	_
18	condition	condition	NOUN	SG-NOM	Number=Sing	0	root	_	SpaceAfter=No
19	.	.	PUNCT	Period	_	18	punct	_	_
