They met while they were both working on a project as lawyers in Buenos Aires.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	2:nsubj	_
2	met	meet	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	while	while	SCONJ	IN	_	7	mark	7:mark	_
4	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	7	nsubj	7:nsubj	_
5	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	7	aux	7:aux	_
6	both	both	ADV	RB	_	7	advmod	7:advmod	_
7	working	work	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	2:advcl:while	_
8	on	on	ADP	IN	_	10	case	10:case	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	10:det	_
10	project	project	NOUN	NN	Number=Sing	7	obl	7:obl:on	_
11	as	as	ADP	IN	_	12	case	12:case	_
12	lawyers	lawyer	NOUN	NNS	Number=Plur	7	obl	7:obl:as	_
13	in	in	ADP	IN	_	15	case	15:case	_
14	Buenos	Buenos	PROPN	NNP	Number=Sing	15	compound	15:compound	_
15	Aires	Aires	PROPN	NNP	Number=Sing	7	obl	7:obl:in	SpaceAfter=No
16	.	.	PUNCT	.	_	2	punct	2:punct	_
