[OSM-legal-talk] OpenData attributes from closed vector data

[Rob Nickerson]

Hi list,

I have been provided (i) original vector data and (ii) a printed map
leaflet both of which include attribute data about roads - for example,
whether the road is lit.

The owner of the attribute data (whether the road is lit) has explicitly
stated that their data is available as OpenData and are happy for it to be
added to OSM. However, I know that the underlying vector data is most
likely derived from a closed source (national mapping agency).

Given that I am only interested in the attribute data (we already have our
own version of the road vector data) can I go ahead and add it to OSM using
(i), (ii) or both?

Thanks,
Rob
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