Corn, or maize, domesticated by 5000 BCE, formed the basis of their diet.
1	Corn	corn	NOUN	NN	Number=Sing	11	nsubj	11:nsubj	Discourse=joint-other_m:53->48:1|Entity=(107-plant-new-cf2-1,4-coref|SpaceAfter=No
2	,	,	PUNCT	,	_	4	punct	4:punct	_
3	or	or	CCONJ	CC	_	4	cc	4:cc	_
4	maize	maize	NOUN	NN	Number=Sing	1	conj	1:conj:or|11:nsubj	Entity=(107-plant-giv:act-cf2-1-coref)|SpaceAfter=No
5	,	,	PUNCT	,	_	6	punct	6:punct	_
6	domesticated	domesticate	VERB	VBN	Tense=Past|VerbForm=Part	1	acl	1:acl	Discourse=elaboration-attribute:54->53:0
7	by	by	ADP	IN	_	8	case	8:case	_
8	5000	5000	NUM	CD	NumForm=Digit|NumType=Card	6	obl	6:obl:by	Entity=(108-time-new-cf5-1-sgl|XML=<date when:::"-5000">
9	BCE	BCE	ADV	RB	Degree=Pos	8	advmod	8:advmod	Entity=108)107)|SpaceAfter=No|XML=</date>
10	,	,	PUNCT	,	_	1	punct	1:punct	_
11	formed	form	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	Discourse=same-unit_m:55->53:1
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	13:det	Entity=(109-abstract-new-cf3-2-sgl
13	basis	basis	NOUN	NN	Number=Sing	11	obj	11:obj	_
14	of	of	ADP	IN	_	16	case	16:case	_
15	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	16	nmod:poss	16:nmod:poss	Entity=(110-abstract-new-cf4-2-sgl(100-person-giv:act-cf1*-1-ana)
16	diet	diet	NOUN	NN	Number=Sing	13	nmod	13:nmod:of	Entity=110)109)|SpaceAfter=No
17	.	.	PUNCT	.	_	11	punct	11:punct	_
