Hi!
A second step is maybe to map Freebase properties to Wikidata ones.
Example: http://www.freebase.com/m/0jsd7n may be mapped to https://www.wikidata.org/wiki/Property:P21
But I am not sure if we should use https://www.wikidata.org/wiki/Property:P646 (as for items) or directly use https://www.wikidata.org/wiki/Property:P1628 with Freebase full URIs.
I think using https://www.wikidata.org/wiki/Property:P1628 is a good idea. It may also be useful to add qualifier "of" (P642) to https://www.wikidata.org/wiki/Q1453477 (Freebase).