The memory that had caused him such pain over the years could not possibly have occurred.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Discourse=explanation-justify:70->73:0|Entity=(36-abstract-giv:inact-cf2-2-coref
2	memory	memory	NOUN	NN	Number=Sing	16	nsubj	5:nsubj|16:nsubj	_
3	that	that	PRON	WDT	PronType=Rel	5	nsubj	2:ref	Discourse=elaboration-attribute:71->70:0
4	had	have	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	5	aux	5:aux	_
5	caused	cause	VERB	VBN	Tense=Past|VerbForm=Part	2	acl:relcl	2:acl:relcl	_
6	him	he	PRON	PRP	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs	5	iobj	5:iobj	Entity=(1-person-giv:act-cf1*-1-ana)
7	such	such	ADJ	JJ	Degree=Pos	8	amod	8:amod	Entity=(88-abstract-new-cf4-2-sgl
8	pain	pain	NOUN	NN	Number=Sing	5	obj	5:obj	Entity=88)
9	over	over	ADP	IN	_	11	case	11:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	Entity=(34-time-giv:inact-cf3-2-coref
11	years	year	NOUN	NNS	Number=Plur	5	obl	5:obl:over	Entity=34)36)
12	could	could	AUX	MD	VerbForm=Fin	16	aux	16:aux	Discourse=same-unit_m:72->70:1
13	not	not	PART	RB	Polarity=Neg	16	advmod	16:advmod	_
14	possibly	possibly	ADV	RB	Degree=Pos	16	advmod	16:advmod	_
15	have	have	AUX	VB	VerbForm=Inf	16	aux	16:aux	_
16	occurred	occur	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	SpaceAfter=No
17	.	.	PUNCT	.	_	16	punct	16:punct	_
