License for DCAT vocabulary?

Hi All,

We have not assigned a license to the DCAT vocabulary and I think it would
be important to set one.

I was trying to check if W3C has a policy around this, but I found this
thread from the PROV list:
http://lists.w3.org/Archives/Public/site-comments/2018Dec/0004.html
but it seems that there was no conclusion.

FYI, many of the OBO foundry ontologies (http://www.obofoundry.org/) use
CC-BY (https://creativecommons.org/licenses/by/4.0/), which I think would
be an appropriate license?

Thanks,

Alejandra