Instead of "public domain", wouldn't "free content" work just as well, using something like the Free Content Definition to limit the scope?
1	Instead	instead	ADV	RB	_	5	case	5:case	Discourse=topic-solutionhood:104->108:3
2	of	of	ADP	IN	_	1	fixed	1:fixed	_
3	"	''	PUNCT	``	_	5	punct	5:punct	SpaceAfter=No|XML=<q>
4	public	public	ADJ	JJ	Degree=Pos	5	amod	5:amod	Entity=(16-abstract-giv:inact-cf3-2-coref
5	domain	domain	NOUN	NN	Number=Sing	14	obl	14:obl:instead_of	Entity=16)|SpaceAfter=No
6	"	''	PUNCT	''	_	5	punct	5:punct	SpaceAfter=No|XML=</q>
7	,	,	PUNCT	,	_	5	punct	5:punct	_
8-9	wouldn't	_	_	_	_	_	_	_	_
8	would	would	AUX	MD	Number=Sing|Person=3|VerbForm=Fin	14	aux	14:aux	_
9	n't	not	PART	RB	Polarity=Neg	14	advmod	14:advmod	_
10	"	''	PUNCT	``	_	12	punct	12:punct	SpaceAfter=No|XML=<q>
11	free	free	ADJ	JJ	Degree=Pos	12	amod	12:amod	Entity=(131-abstract-giv:act-cf1*-2-coref-Free_content
12	content	content	NOUN	NN	Number=Sing	14	nsubj	14:nsubj	Entity=131)|SpaceAfter=No
13	"	''	PUNCT	''	_	12	punct	12:punct	XML=</q>
14	work	work	VERB	VB	VerbForm=Inf	0	root	0:root	_
15	just	just	ADV	RB	_	17	advmod	17:advmod	_
16	as	as	ADV	RB	_	17	advmod	17:advmod	_
17	well	well	ADV	RB	Degree=Pos	14	advmod	14:advmod	SpaceAfter=No
18	,	,	PUNCT	,	_	19	punct	19:punct	_
19	using	use	VERB	VBG	VerbForm=Ger	14	advcl	14:advcl	Discourse=mode-means:105->104:0|Entity=(132-event-new-cf6-1,5,6-disc
20	something	something	NOUN	NN	Number=Sing	19	obj	19:obj	Entity=(133-abstract-new-cf4-1,4,5-sgl
21	like	like	ADP	IN	_	25	case	25:case	_
22	the	the	DET	DT	Definite=Def|PronType=Art	25	det	25:det	Entity=(134-abstract-new-cf5-2,3,4-sgl-Definition_of_Free_Cultural_Works
23	Free	Free	ADJ	NNP	Degree=Pos|Number=Sing	24	amod	24:amod	Entity=(131-abstract-giv:act-cf1*-1,2-coref-Free_content|XML=<ref target:::"http://freecontentdefinition.org/">
24	Content	Content	PROPN	NNP	Number=Sing	25	compound	25:compound	Entity=131)
25	Definition	Definition	PROPN	NNP	Number=Sing	20	nmod	20:nmod:like	Entity=134)133)|XML=</ref>
26	to	to	PART	TO	_	27	mark	27:mark	Discourse=purpose-goal:106->105:0
27	limit	limit	VERB	VB	VerbForm=Inf	19	advcl	19:advcl:to	_
28	the	the	DET	DT	Definite=Def|PronType=Art	29	det	29:det	Entity=(112-abstract-giv:inact-cf2-2-coref
29	scope	scope	NOUN	NN	Number=Sing	27	obj	27:obj	Entity=112)132)|SpaceAfter=No
30	?	?	PUNCT	.	_	14	punct	14:punct	_
