Previously at the invitation of Premier Zhou En-Lai, Chao and his wife returned to China in 1973 for the first time since the 1940s.
1	Previously	previously	ADV	RB	Degree=Pos	16	advmod	16:advmod	Discourse=context-background:52->51:0
2	at	at	ADP	IN	_	4	case	4:case	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	4:det	Entity=(110-event-new-cf5-2,5,6,8-sgl
4	invitation	invitation	NOUN	NN	Number=Sing	16	obl	16:obl:at	_
5	of	of	ADP	IN	_	6	case	6:case	_
6	Premier	Premier	PROPN	NNP	Number=Sing	4	nmod	4:nmod:of	Entity=(111-person-new-cf7-1,2,3,5-sgl-Zhou_Enlai
7	Zhou	Zhou	PROPN	NNP	Number=Sing	6	flat	6:flat	XML=<ref target:::"https://en.wikipedia.org/wiki/Zhou_Enlai">
8	En	En	PROPN	NNP	Number=Sing	6	flat	6:flat	SpaceAfter=No|XML=<w>
9	-	-	PUNCT	HYPH	_	10	punct	10:punct	SpaceAfter=No
10	Lai	Lai	PROPN	NNP	Number=Sing	8	flat	8:flat	Entity=111)110)|SpaceAfter=No|XML=</w></ref>
11	,	,	PUNCT	,	_	4	punct	4:punct	_
12	Chao	Chao	PROPN	NNP	Number=Sing	16	nsubj	16:nsubj	Entity=(6-person-giv:act-cf1*-1-coref-Yuen_Ren_Chao)
13	and	and	CCONJ	CC	_	15	cc	15:cc	_
14	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	15	nmod:poss	15:nmod:poss	Entity=(51-person-giv:inact-cf3-2-coref-Buwei_Yang_Chao(6-person-giv:act-cf1*-1-ana-Yuen_Ren_Chao)
15	wife	wife	NOUN	NN	Number=Sing	12	conj	12:conj:and|16:nsubj	Entity=51)
16	returned	return	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
17	to	to	ADP	IN	_	18	case	18:case	_
18	China	China	PROPN	NNP	Number=Sing	16	obl	16:obl:to	Entity=(36-place-giv:act-cf2-1-coref-China)
19	in	in	ADP	IN	_	20	case	20:case	_
20	1973	1973	NUM	CD	NumForm=Digit|NumType=Card	16	obl	16:obl:in	Entity=(112-time-new-cf8-1-sgl)|XML=<date when:::"1973"></date>
21	for	for	ADP	IN	_	24	case	24:case	_
22	the	the	DET	DT	Definite=Def|PronType=Art	24	det	24:det	Entity=(113-time-new-cf6-3-sgl
23	first	first	ADJ	JJ	Degree=Pos|NumType=Ord	24	amod	24:amod	_
24	time	time	NOUN	NN	Number=Sing	16	obl	16:obl:for	_
25	since	since	ADP	IN	_	27	case	27:case	_
26	the	the	DET	DT	Definite=Def|PronType=Art	27	det	27:det	Entity=(114-time-acc:com-cf4-2-sgl
27	1940s	1940s	NOUN	NNS	Number=Plur	24	nmod	24:nmod:since	Entity=114)113)|SpaceAfter=No|XML=<date from:::"1941-01-01" to:::"1949-12-31"></date>
28	.	.	PUNCT	.	_	16	punct	16:punct	_
