He served as Bertrand Russell's interpreter when Russell visited China in 1920.
1	He	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	2	nsubj	2:nsubj	Discourse=joint-other_m:12->10:1|Entity=(6-person-giv:act-cf1*-1-ana-Yuen_Ren_Chao)
2	served	serve	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	as	as	ADP	IN	_	7	case	7:case	_
4	Bertrand	Bertrand	PROPN	NNP	Number=Sing	7	nmod:poss	7:nmod:poss	Entity=(6-person-giv:act-cf1*-2,4-coref-Yuen_Ren_Chao(35-person-new-cf2-1,2-coref-Bertrand_Russell|XML=<ref target:::"https://en.wikipedia.org/wiki/Bertrand_Russell">
5-6	Russell's	_	_	_	_	_	_	_	_
5	Russell	Russell	PROPN	NNP	Number=Sing	4	flat	4:flat	XML=</ref>
6	's	's	PART	POS	_	4	case	4:case	Entity=35)
7	interpreter	interpreter	NOUN	NN	Number=Sing	2	obl	2:obl:as	Entity=6)
8	when	when	ADV	WRB	PronType=Int	10	advmod	10:advmod	Discourse=context-circumstance:13->12:0
9	Russell	Russell	PROPN	NNP	Number=Sing	10	nsubj	10:nsubj	Entity=(35-person-giv:act-cf2-1-coref-Bertrand_Russell)
10	visited	visit	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	advcl	2:advcl:when	_
11	China	China	PROPN	NNP	Number=Sing	10	obj	10:obj	Entity=(36-place-new-cf3-1-coref-China)
12	in	in	ADP	IN	_	13	case	13:case	_
13	1920	1920	NUM	CD	NumForm=Digit|NumType=Card	10	obl	10:obl:in	Entity=(37-time-new-cf4-1-coref)|SpaceAfter=No|XML=<date when:::"1920"></date>
14	.	.	PUNCT	.	_	2	punct	2:punct	_
