However, written sources are rarely explicit about the precise form, meaning, and use of interjections.
1	However	however	ADV	RB	_	7	advmod	7:advmod	Discourse=adversative-contrast_m:117->115:3|SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	1:punct	_
3	written	written	ADJ	JJ	Degree=Pos	4	amod	4:amod	Entity=(139-abstract-giv:act-cf1*-2-coref
4	sources	source	NOUN	NNS	Number=Plur	7	nsubj	7:nsubj	Entity=139)
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	7:cop	_
6	rarely	rarely	ADV	RB	Degree=Pos	7	advmod	7:advmod	_
7	explicit	explicit	ADJ	JJ	Degree=Pos	0	root	0:root	_
8	about	about	ADP	IN	_	11	case	11:case	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	Entity=(143-abstract-new-cf2-3,5,8-sgl
10	precise	precise	ADJ	JJ	Degree=Pos	11	amod	11:amod	_
11	form	form	NOUN	NN	Number=Sing	7	obl	7:obl:about	SpaceAfter=No
12	,	,	PUNCT	,	_	13	punct	13:punct	_
13	meaning	meaning	NOUN	NN	Number=Sing	11	conj	7:obl:about|11:conj:and	SpaceAfter=No
14	,	,	PUNCT	,	_	16	punct	16:punct	_
15	and	and	CCONJ	CC	_	16	cc	16:cc	_
16	use	use	NOUN	NN	Number=Sing	11	conj	7:obl:about|11:conj:and	_
17	of	of	ADP	IN	_	18	case	18:case	_
18	interjections	interjection	NOUN	NNS	Number=Plur	11	nmod	11:nmod:of	Entity=(144-abstract-new-cf3-1-sgl)143)|SpaceAfter=No
19	.	.	PUNCT	.	_	7	punct	7:punct	_
