Fe fu'r sedd yng ngofal Llafur rhwng 1908 a 2015, cyn i'r Ceidwadwyr ei hennill gyda mwyafrif o ddim ond 27.
1	Fe	fe	PART	aff	_	2	advmod	_	_
2	fu	bod	VERB	verb	Mood=Ind|Mutation=SM|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	SpaceAfter=No
3	'r	y	DET	art	_	4	det	_	_
4	sedd	sedd	NOUN	noun	Gender=Fem|Number=Sing	2	nsubj	_	_
5	yng	yn	ADP	prep	_	6	case	_	_
6	ngofal	gofal	NOUN	noun	Gender=Masc|Mutation=NM|Number=Sing	2	obl	_	_
7	Llafur	Llafur	NOUN	noun	Gender=Masc|Number=Sing	6	nmod	_	_
8	rhwng	rhwng	ADP	prep	_	9	case	_	_
9	1908	1908	NUM	num	NumForm=Digit|NumType=Card	2	obl	_	_
10	a	a	CCONJ	cconj	_	11	cc	_	_
11	2015	2015	NUM	num	NumForm=Digit|NumType=Card	9	conj	_	SpaceAfter=No
12	,	,	PUNCT	punct	_	18	punct	_	_
13	cyn	cyn	ADP	prep	_	18	mark	_	_
14	i	i	ADP	prep	_	16	case	_	SpaceAfter=No
15	'r	y	DET	art	_	16	det	_	_
16	Ceidwadwyr	ceidwadwr	NOUN	noun	Gender=Masc|Number=Plur	18	nsubj	_	_
17	ei	ef	PRON	dep	Gender=Masc|Number=Sing|Person=3|PronType=Prs	18	obj	_	_
18	hennill	ennill	NOUN	verbnoun	Mutation=AM|Number=Sing|VerbForm=Vnoun	2	advcl	_	_
19	gyda	gyda	ADP	prep	_	20	case	_	_
20	mwyafrif	mwyafrif	NOUN	noun	Gender=Masc|Number=Sing	18	obl	_	_
21	o	o	ADP	prep	_	24	case	_	_
22	ddim	dim	PART	neg	Mutation=SM	24	advmod	_	_
23	ond	ond	CCONJ	cconj	_	22	fixed	_	_
24	27	27	NUM	num	NumForm=Digit|NumType=Card	20	nmod	_	SpaceAfter=No
25	.	.	PUNCT	punct	_	2	punct	_	SpacesAfter=\n
