I knew a cat that died in its sleep aged 21.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	2	nsubj	2:nsubj	_
2	knew	know	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	4:det	_
4	cat	cat	NOUN	NN	Number=Sing	2	obj	2:obj|6:nsubj	_
5	that	that	PRON	WDT	PronType=Rel	6	nsubj	4:ref	_
6	died	die	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	acl:relcl	4:acl:relcl	_
7	in	in	ADP	IN	_	9	case	9:case	_
8	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	9:nmod:poss	_
9	sleep	sleep	NOUN	NN	Number=Sing	6	obl	6:obl:in	_
10	aged	aged	ADJ	JJ	Degree=Pos	6	advcl	6:advcl	_
11	21	21	NUM	CD	NumForm=Digit|NumType=Card	10	obj	10:obj	SpaceAfter=No
12	.	.	PUNCT	.	_	2	punct	2:punct	_
