There remained the problem of how to occupy his thoughts as he followed the old man.
1	There	there	PRON	EX	_	2	expl	_	_
2	remained	remain	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	0	root	_	_
3	the	the	DET	DEF	Definite=Def|PronType=Art	4	det	_	_
4	problem	problem	NOUN	SG-NOM	Number=Sing	2	nsubj	_	_
5	of	of	ADP	_	_	8	mark	_	_
6	how	how	ADV	WH	PronType=Int	8	advmod	_	_
7	to	to	PART	_	_	8	mark	_	_
8	occupy	occupy	VERB	INF	VerbForm=Inf	4	acl	_	_
9	his	he	PRON	P3SG-GEN	Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	thoughts	thought	NOUN	PL-NOM	Number=Plur	8	obj	_	_
11	as	as	SCONJ	_	_	13	mark	_	_
12	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	_
13	followed	follow	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	8	advcl	_	_
14	the	the	DET	DEF	Definite=Def|PronType=Art	16	det	_	_
15	old	old	ADJ	POS	Degree=Pos	16	amod	_	_
16	man	man	NOUN	SG-NOM	Number=Sing	13	obj	_	SpaceAfter=No
17	.	.	PUNCT	Period	_	2	punct	_	_
