The drawstring just completes the fit.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Discourse=joint-other_m:48->46:2|Entity=(53-object-giv:act-cf1*-2-coref
2	drawstring	drawstring	NOUN	NN	Number=Sing	4	nsubj	4:nsubj	Entity=53)
3	just	just	ADV	RB	_	4	advmod	4:advmod	_
4	completes	complete	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Bridge=41<57|Entity=(57-abstract-acc:inf-cf2-2-sgl
6	fit	fit	NOUN	NN	Number=Sing	4	obj	4:obj	Entity=57)|SpaceAfter=No
7	.	.	PUNCT	.	_	4	punct	4:punct	_
