If you buy too many boxes you can return the unused for a full refund.
1	If	if	SCONJ	IN	_	3	mark	3:mark	Discourse=contingency-condition:78->79:0
2	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	3	nsubj	3:nsubj	Entity=(2-person-giv:inact-cf1-1-ana)
3	buy	buy	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	9	advcl	9:advcl:if	_
4	too	too	ADV	RB	Degree=Pos	5	advmod	5:advmod	Entity=(96-object-new-cf3-3-coref
5	many	many	ADJ	JJ	Degree=Pos	6	amod	6:amod	_
6	boxes	box	NOUN	NNS	Number=Plur	3	obj	3:obj	Entity=96)
7	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	9	nsubj	9:nsubj	Discourse=restatement-partial:79->77:0|Entity=(2-person-giv:act-cf1-1-ana)
8	can	can	AUX	MD	VerbForm=Fin	9	aux	9:aux	_
9	return	return	VERB	VB	VerbForm=Inf	0	root	0:root	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	Bridge=96<97|Entity=(97-object-acc:inf-cf2-2-sgl
11	unused	unused	ADJ	JJ	Degree=Pos|Polarity=Neg	9	obj	9:obj	Entity=97)
12	for	for	ADP	IN	_	15	case	15:case	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	15:det	Entity=(98-abstract-new-cf4-3-sgl
14	full	full	ADJ	JJ	Degree=Pos	15	amod	15:amod	_
15	refund	refund	NOUN	NN	Number=Sing	9	obl	9:obl:for	Entity=98)|SpaceAfter=No
16	.	.	PUNCT	.	_	9	punct	9:punct	_
