Ok, what about a dataset? Sure set of cc-0 nodes implies cc-0 dataset in math, but in text this is not valid any more as words are not copyrightable but a sentence is?

Dne 3.8.2012 14:10 "Daniel Kinzler" <daniel.kinzler@wikimedia.de> napsal(a):
On 03.08.2012 15:04, Jan Kuèera wrote:
> Hm,
>
> but I think you fail to import data from Wikipedia under CC-0... from
> lists, infoboxes and even the language links?

Individual data points are not copyrightable, so they can just be copied. If
this wasn't the case, we could not cite any non-free Works in Wikipedia either.

Anything that constitutes even a sentence can not be copied to Wikidata, or
needs an extra license statement attached. Lucky, our data structure is flexible
enough that we could even do that, though i'd like to avoid it.

-- daniel

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