The philosopher Richard Joyce argues that the problem has to do with the sensitivity of our moral beliefs to the moral facts (Joyce 2006).
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Discourse=attribution-positive:134->135:0|Entity=(115-person-new-cf2-2-coref-Richard_Joyce_%28philosopher%29
2	philosopher	philosopher	NOUN	NN	Number=Sing	5	nsubj	5:nsubj	Entity=115)
3	Richard	Richard	PROPN	NNP	Number=Sing	2	appos	2:appos	Entity=(115-person-giv:act-cf2-1,2-appos-Richard_Joyce_%28philosopher%29
4	Joyce	Joyce	PROPN	NNP	Number=Sing	3	flat	3:flat	Entity=115)
5	argues	argue	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
6	that	that	SCONJ	IN	_	9	mark	9:mark	Discourse=organization-preparation:135->141:2
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	Entity=(112-abstract-giv:act-cf1*-2-coref
8	problem	problem	NOUN	NN	Number=Sing	9	nsubj	9:nsubj|11:nsubj:xsubj	Entity=112)
9	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	ccomp	5:ccomp	_
10	to	to	PART	TO	_	11	mark	11:mark	_
11	do	do	VERB	VB	VerbForm=Inf	9	xcomp	9:xcomp	_
12	with	with	ADP	IN	_	14	case	14:case	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	14:det	Entity=(116-abstract-new-cf6-2-sgl
14	sensitivity	sensitivity	NOUN	NN	Number=Sing	11	obl	11:obl:with	_
15	of	of	ADP	IN	_	18	case	18:case	_
16	our	our	PRON	PRP$	Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs	18	nmod:poss	18:nmod:poss	Entity=(100-abstract-giv:act-cf3-3-coref(2-person-giv:inact-cf4-1-ana)
17	moral	moral	ADJ	JJ	Degree=Pos	18	amod	18:amod	_
18	beliefs	belief	NOUN	NNS	Number=Plur	14	nmod	14:nmod:of	Entity=100)
19	to	to	ADP	IN	_	22	case	22:case	_
20	the	the	DET	DT	Definite=Def|PronType=Art	22	det	22:det	Entity=(1-abstract-giv:inact-cf5-3-coref
21	moral	moral	ADJ	JJ	Degree=Pos	22	amod	22:amod	_
22	facts	fact	NOUN	NNS	Number=Plur	14	nmod	14:nmod:to	Entity=1)116)
23	(	(	PUNCT	-LRB-	_	24	punct	24:punct	Discourse=explanation-evidence:136->135:1|SpaceAfter=No
24	Joyce	Joyce	PROPN	NNP	Number=Sing	5	dep	5:dep	Entity=(117-abstract-new-cf7-1-sgl(115-person-giv:act-cf2-1-coref-Richard_Joyce_%28philosopher%29)
25	2006	2006	NUM	CD	NumForm=Digit|NumType=Card	24	nmod:tmod	24:nmod:tmod	Entity=(118-time-new-cf8-1-sgl)117)|SpaceAfter=No|XML=<date when:::"2006"></date>
26	)	)	PUNCT	-RRB-	_	24	punct	24:punct	SpaceAfter=No
27	.	.	PUNCT	.	_	5	punct	5:punct	_
