The trouble was, there was already someone sitting on it.
1	The	the	DET	DEF	Definite=Def|PronType=Art	2	det	_	_
2	trouble	trouble	NOUN	SG-NOM	Number=Sing	3	nsubj	_	_
3	was	be	VERB	PAST	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	0	root	_	SpaceAfter=No
4	,	,	PUNCT	Comma	_	9	punct	_	_
5	there	there	PRON	EX	_	9	expl	_	_
6	was	be	AUX	PAST	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	9	aux	_	_
7	already	already	ADV	_	_	9	advmod	_	_
8	someone	someone	PRON	IND-SG-NOM	Number=Sing	9	nsubj	_	_
9	sitting	sit	VERB	ING	Tense=Pres|VerbForm=Part	3	advcl	_	_
10	on	on	ADP	_	_	11	case	_	_
11	it	it	PRON	PERS-SG	_	9	obl	_	SpaceAfter=No
12	.	.	PUNCT	Period	_	3	punct	_	_
