Or has it occurred since birth.
1	Or	or	CCONJ	CC	_	4	cc	4:cc	_
2	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	4:aux	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj	_
4	occurred	occur	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
5	since	since	ADP	IN	_	6	case	6:case	_
6	birth	birth	NOUN	NN	Number=Sing	4	obl	4:obl:since	SpaceAfter=No
7	.	.	PUNCT	.	_	4	punct	4:punct	_
