Rick Santorum himself has acknowledged and discussed the existence and prevalence of the santorum neologism phenomenon; he was quoted by The Canadian Press on his assessment of Google's response;
1	Rick	Rick	PROPN	NNP	Number=Sing	5	nsubj	5:nsubj|7:nsubj	Discourse=joint-other_m:52->11:2|Entity=(6-person-giv:inact-cf1-1,2-coref-Rick_Santorum
2	Santorum	Santorum	PROPN	NNP	Number=Sing	1	flat	1:flat	_
3	himself	himself	PRON	PRP	Gender=Masc|Number=Sing|Person=3|PronType=Emp|Reflex=Yes	1	nmod:npmod	1:nmod:npmod	Entity=6)
4	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux	5:aux|7:aux	_
5	acknowledged	acknowledge	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
6	and	and	CCONJ	CC	_	7	cc	7:cc	_
7	discussed	discuss	VERB	VBN	Tense=Past|VerbForm=Part	5	conj	5:conj:and	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	9:det	Entity=(77-abstract-new-cf5-2,4-sgl
9	existence	existence	NOUN	NN	Number=Sing	5	obj	5:obj|7:obj	_
10	and	and	CCONJ	CC	_	11	cc	11:cc	_
11	prevalence	prevalence	NOUN	NN	Number=Sing	9	conj	5:obj|9:conj:and	_
12	of	of	ADP	IN	_	16	case	16:case	_
13	the	the	DET	DT	Definite=Def|PronType=Art	16	det	16:det	Entity=(68-abstract-giv:inact-cf4-4-coref
14	santorum	santorum	NOUN	NN	Number=Sing	15	compound	15:compound	Entity=(10-abstract-giv:act-cf3-2-coref(6-person-giv:act-cf1-1-coref-Rick_Santorum)
15	neologism	neologism	NOUN	NN	Number=Sing	16	compound	16:compound	Entity=10)
16	phenomenon	phenomenon	NOUN	NN	Number=Sing	9	nmod	9:nmod:of	Entity=68)77)|SpaceAfter=No
17	;	;	PUNCT	:	_	20	punct	20:punct	_
18	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	20	nsubj:pass	20:nsubj:pass	Discourse=attribution-positive:53->54:2|Entity=(6-person-giv:act-cf1-1-ana-Rick_Santorum)
19	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	20	aux:pass	20:aux:pass	_
20	quoted	quote	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	parataxis	5:parataxis	_
21	by	by	ADP	IN	_	24	case	24:case	_
22	The	the	DET	DT	Definite=Def|PronType=Art	24	det	24:det	Entity=(78-organization-new-cf6-2,3-sgl-The_Canadian_Press
23	Canadian	Canadian	ADJ	NNP	Degree=Pos|Number=Sing	24	amod	24:amod	_
24	Press	Press	PROPN	NNP	Number=Sing	20	obl:agent	20:obl:agent	Entity=78)
25	on	on	ADP	IN	_	27	case	27:case	_
26	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	27	nmod:poss	27:nmod:poss	Entity=(79-abstract-new-cf7-2-sgl(6-person-giv:act-cf1-1-ana-Rick_Santorum)
27	assessment	assessment	NOUN	NN	Number=Sing	20	obl	20:obl:on	_
28	of	of	ADP	IN	_	31	case	31:case	_
29-30	Google's	_	_	_	_	_	_	_	_
29	Google	Google	PROPN	NNP	Number=Sing	31	nmod:poss	31:nmod:poss	Entity=(80-abstract-new-cf8-3-sgl(74-organization-giv:act-cf2*-1-coref-Google
30	's	's	PART	POS	_	29	case	29:case	Entity=74)
31	response	response	NOUN	NN	Number=Sing	27	nmod	27:nmod:of	Entity=80)79)|SpaceAfter=No
32	;	;	PUNCT	:	_	5	punct	5:punct	_
