You have to pay CASH ONLY before they start unloading track on your destination.
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	2:nsubj|4:nsubj:xsubj	_
2	have	have	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	to	to	PART	TO	_	4	mark	4:mark	_
4	pay	pay	VERB	VB	VerbForm=Inf	2	xcomp	2:xcomp	_
5	CASH	cash	NOUN	NN	Number=Sing	4	obj	4:obj	_
6	ONLY	only	ADV	RB	_	5	advmod	5:advmod	_
7	before	before	SCONJ	IN	_	9	mark	9:mark	_
8	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	9	nsubj	9:nsubj|10:nsubj:xsubj	_
9	start	start	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	advcl	4:advcl:before	_
10	unloading	unload	VERB	VBG	VerbForm=Ger	9	xcomp	9:xcomp	_
11	track	track	NOUN	NN	Number=Sing	10	obj	10:obj	_
12	on	on	ADP	IN	_	14	case	14:case	_
13	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	14	nmod:poss	14:nmod:poss	_
14	destination	destination	NOUN	NN	Number=Sing	10	obl	10:obl:on	SpaceAfter=No
15	.	.	PUNCT	.	_	2	punct	2:punct	_
