Once they realized their mistake they sent a mechanic and tow truck to my wife's work and towed it back to fix it.
1	Once	once	SCONJ	IN	_	3	mark	3:mark	_
2	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
3	realized	realize	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	7	advcl	7:advcl:once	_
4	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	5:nmod:poss	_
5	mistake	mistake	NOUN	NN	Number=Sing	3	obj	3:obj	_
6	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	7	nsubj	7:nsubj|19:nsubj	_
7	sent	send	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	9:det	_
9	mechanic	mechanic	NOUN	NN	Number=Sing	7	obj	7:obj	_
10	and	and	CCONJ	CC	_	12	cc	12:cc	_
11	tow	tow	NOUN	NN	Number=Sing	12	compound	12:compound	_
12	truck	truck	NOUN	NN	Number=Sing	9	conj	7:obj|9:conj:and	_
13	to	to	ADP	IN	_	17	case	17:case	_
14	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	15	nmod:poss	15:nmod:poss	_
15-16	wife's	_	_	_	_	_	_	_	_
15	wife	wife	NOUN	NN	Number=Sing	17	nmod:poss	17:nmod:poss	_
16	's	's	PART	POS	_	15	case	15:case	_
17	work	work	NOUN	NN	Number=Sing	7	obl	7:obl:to	_
18	and	and	CCONJ	CC	_	19	cc	19:cc	_
19	towed	tow	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	7	conj	7:conj:and	_
20	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	19	obj	19:obj	_
21	back	back	ADV	RB	_	19	advmod	19:advmod	_
22	to	to	PART	TO	_	23	mark	23:mark	_
23	fix	fix	VERB	VB	VerbForm=Inf	19	advcl	19:advcl:to	_
24	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	23	obj	23:obj	SpaceAfter=No
25	.	.	PUNCT	.	_	7	punct	7:punct	_
