He can eat all his feed and doesn't drop any, but cannot eat hay from lack of muscle to chew it.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	3	nsubj	3:nsubj|10:nsubj|16:nsubj	_
2	can	can	AUX	MD	VerbForm=Fin	3	aux	3:aux	_
3	eat	eat	VERB	VB	VerbForm=Inf	0	root	0:root	_
4	all	all	DET	PDT	_	6	det:predet	6:det:predet	_
5	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	6:nmod:poss	_
6	feed	feed	NOUN	NN	Number=Sing	3	obj	3:obj	_
7	and	and	CCONJ	CC	_	10	cc	10:cc	_
8-9	doesn't	_	_	_	_	_	_	_	_
8	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	aux	10:aux	_
9	n't	not	PART	RB	_	10	advmod	10:advmod	_
10	drop	drop	VERB	VB	VerbForm=Inf	3	conj	3:conj:and	_
11	any	any	DET	DT	_	10	obj	10:obj	SpaceAfter=No
12	,	,	PUNCT	,	_	16	punct	16:punct	_
13	but	but	CCONJ	CC	_	16	cc	16:cc	_
14-15	cannot	_	_	_	_	_	_	_	_
14	can	can	AUX	MD	VerbForm=Fin	16	aux	16:aux	_
15	not	not	PART	RB	_	16	advmod	16:advmod	_
16	eat	eat	VERB	VB	VerbForm=Inf	3	conj	3:conj:and	_
17	hay	hay	NOUN	NN	Number=Sing	16	obj	16:obj	_
18	from	from	ADP	IN	_	19	case	19:case	_
19	lack	lack	NOUN	NN	Number=Sing	16	obl	16:obl:from	_
20	of	of	ADP	IN	_	21	case	21:case	_
21	muscle	muscle	NOUN	NN	Number=Sing	19	nmod	19:nmod:of	_
22	to	to	PART	TO	_	23	mark	23:mark	_
23	chew	chew	VERB	VB	VerbForm=Inf	21	acl	21:acl:to	_
24	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	23	obj	23:obj	SpaceAfter=No
25	.	.	PUNCT	.	_	3	punct	3:punct	_
