From what I understand they're pretty much the same thing.
1	From	from	SCONJ	IN	_	2	case	2:case	_
2	what	what	PRON	WP	PronType=Int	11	obl	11:obl:from	_
3	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	4	nsubj	4:nsubj	_
4	understand	understand	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	2	acl:relcl	2:acl:relcl	_
5-6	they're	_	_	_	_	_	_	_	_
5	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	11	nsubj	11:nsubj	_
6	're	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	cop	11:cop	_
7	pretty	pretty	ADV	RB	_	8	advmod	8:advmod	_
8	much	much	ADV	RB	_	11	advmod	11:advmod	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
10	same	same	ADJ	JJ	Degree=Pos	11	amod	11:amod	_
11	thing	thing	NOUN	NN	Number=Sing	0	root	0:root	SpaceAfter=No
12	.	.	PUNCT	.	_	11	punct	11:punct	_
