It’s not; Christian Rosencreutz is the purported author of a book called The Chemical Wedding.
1-2	It’s	_	_	_	_	_	_	_	_
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	2:nsubj	Discourse=elaboration-additional:14->7:1|Entity=(2-event-giv:act-cf1*-1-ana)
2	’s	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	not	not	PART	RB	Polarity=Neg	2	advmod	2:advmod	SpaceAfter=No
4	;	;	PUNCT	:	_	10	punct	10:punct	_
5	Christian	Christian	PROPN	NNP	Number=Sing	10	nsubj	10:nsubj	Discourse=elaboration-additional:15->14:1|Entity=(3-person-giv:act-cf2-1,2-coref-Christian_Rosenkreuz
6	Rosencreutz	Rosencreutz	PROPN	NNP	Number=Sing	5	flat	5:flat	Entity=3)
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	10:cop	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	Entity=(3-person-giv:act-cf2-3,9-coref-Christian_Rosenkreuz
9	purported	purported	ADJ	JJ	Degree=Pos	10	amod	10:amod	_
10	author	author	NOUN	NN	Number=Sing	2	parataxis	2:parataxis	XML=<hi rend:::"italic"></hi>
11	of	of	ADP	IN	_	13	case	13:case	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	13:det	Entity=(1-abstract-giv:act-cf3-2,5-coref-Chymical_Wedding_of_Christian_Rosenkreutz
13	book	book	NOUN	NN	Number=Sing	10	nmod	10:nmod:of	_
14	called	call	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	13	acl	13:acl	_
15	The	the	DET	DT	Definite=Def|PronType=Art	17	det	17:det	Entity=(1-abstract-giv:act-cf3-2,3-coref-Chymical_Wedding_of_Christian_Rosenkreutz|XML=<hi rend:::"italic">
16	Chemical	Chemical	ADJ	NNP	Degree=Pos|Number=Sing	17	amod	17:amod	_
17	Wedding	Wedding	PROPN	NNP	Number=Sing	14	obj	14:obj	Entity=1)1)3)|SpaceAfter=No|XML=</hi>
18	.	.	PUNCT	.	_	2	punct	2:punct	_
