The Orange Order and the 12th of July Marches would be argued by some not to be an Irish custom but unarguable ticks every criteria to be considered one.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	3:det	_
2	Orange	Orange	ADJ	NNP	Degree=Pos	3	amod	3:amod	_
3	Order	Order	PROPN	NNP	Number=Sing	12	nsubj:pass	12:nsubj:pass|20:nsubj:xsubj|23:nsubj:pass	_
4	and	and	CCONJ	CC	_	9	cc	9:cc	_
5	the	the	DET	DT	Definite=Def|PronType=Art	9	det	9:det	_
6	12th	12th	NOUN	NN	Number=Sing|NumType=Ord	9	compound	9:compound	_
7	of	of	ADP	IN	_	8	case	8:case	_
8	July	July	PROPN	NNP	Number=Sing	6	nmod	6:nmod:of	_
9	Marches	March	PROPN	NNPS	Number=Plur	3	conj	3:conj:and|12:nsubj:pass|20:nsubj:xsubj	_
10	would	would	AUX	MD	VerbForm=Fin	12	aux	12:aux	_
11	be	be	AUX	VB	VerbForm=Inf	12	aux:pass	12:aux:pass	_
12	argued	argue	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	0:root	_
13	by	by	ADP	IN	_	14	case	14:case	_
14	some	some	DET	DT	_	12	obl	12:obl:by	_
15	not	not	PART	RB	_	20	advmod	20:advmod	_
16	to	to	PART	TO	_	20	mark	20:mark	_
17	be	be	AUX	VB	VerbForm=Inf	20	cop	20:cop	_
18	an	a	DET	DT	Definite=Ind|PronType=Art	20	det	20:det	_
19	Irish	Irish	ADJ	JJ	Degree=Pos	20	amod	20:amod	_
20	custom	custom	NOUN	NN	Number=Sing	12	xcomp	12:xcomp	_
21	but	but	CCONJ	CC	_	23	cc	23:cc	_
22	unarguable	unarguable	ADV	RB	_	23	advmod	23:advmod	_
23	ticks	tick	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	conj	12:conj:but	_
24	every	every	DET	DT	_	25	det	25:det	_
25	criteria	criteria	NOUN	NN	Number=Sing	23	obj	23:obj	_
26	to	to	PART	TO	_	28	mark	28:mark	_
27	be	be	AUX	VB	VerbForm=Inf	28	aux:pass	28:aux:pass	_
28	considered	consider	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	25	acl	25:acl:to	_
29	one	one	NUM	CD	NumForm=Word|NumType=Card	28	xcomp	28:xcomp	SpaceAfter=No
30	.	.	PUNCT	.	_	12	punct	12:punct	_
