to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
The following shall be considered lawful reproductions: (...) (9) the reproduction of a work of art permanently displayed in a street, square or other public place by means of a technique different from that used for the making of the original; with respect to buildings, the said right shall be limited to the external elevations
