Recent research along the west coast of South America suggests that migrant populations may have traveled down this coast by water as well as by land.
1	Recent	Recent	ADJ	JJ	Degree=Pos	2	amod	2:amod	Discourse=attribution-positive:26->27:0|Entity=(54-abstract-new-cf4-2,8-sgl
2	research	research	NOUN	NN	Number=Sing	10	nsubj	10:nsubj	_
3	along	along	ADP	IN	_	6	case	6:case	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Entity=(55-place-new-cf1-3,5-coref
5	west	west	NOUN	NN	Number=Sing	6	compound	6:compound	_
6	coast	coast	NOUN	NN	Number=Sing	2	nmod	2:nmod:along	_
7	of	of	ADP	IN	_	9	case	9:case	_
8	South	South	PROPN	NNP	Number=Sing	9	compound	9:compound	Entity=(47-place-giv:act-cf2*-1,2-coref-South_America
9	America	America	PROPN	NNP	Number=Sing	6	nmod	6:nmod:of	Entity=47)55)54)
10	suggests	suggest	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
11	that	that	SCONJ	IN	_	16	mark	16:mark	Discourse=elaboration-additional:27->23:2
12	migrant	migrant	ADJ	JJ	Degree=Pos	13	amod	13:amod	Entity=(56-person-new-cf3-2-sgl
13	populations	population	NOUN	NNS	Number=Plur	16	nsubj	16:nsubj	Entity=56)
14	may	may	AUX	MD	VerbForm=Fin	16	aux	16:aux	_
15	have	have	AUX	VB	VerbForm=Inf	16	aux	16:aux	_
16	traveled	travel	VERB	VBN	Tense=Past|VerbForm=Part	10	ccomp	10:ccomp	_
17	down	down	ADP	IN	_	19	case	19:case	_
18	this	this	DET	DT	Number=Sing|PronType=Dem	19	det	19:det	Entity=(55-place-giv:act-cf1-2-coref
19	coast	coast	NOUN	NN	Number=Sing	16	obl	16:obl:down	Entity=55)
20	by	by	ADP	IN	_	21	case	21:case	_
21	water	water	NOUN	NN	Number=Sing	16	obl	16:obl:by	Entity=(57-substance-new-cf5-1-sgl)
22	as	as	ADV	RB	_	26	cc	26:cc	_
23	well	well	ADV	RB	Degree=Pos	22	fixed	22:fixed	_
24	as	as	ADP	IN	_	22	fixed	22:fixed	_
25	by	by	ADP	IN	_	26	case	26:case	_
26	land	land	NOUN	NN	Number=Sing	21	conj	16:obl:by|21:conj:as_well_as	Entity=(58-place-new-cf6-1-sgl)|SpaceAfter=No
27	.	.	PUNCT	.	_	10	punct	10:punct	_
