While playing with the dump, I came accross some entries like the following:
http://www.wikidata.org/entity/Q12258SCD97A47E-A0CA-453F-B01A-DEE8829139BF http://www.wikidata.org/entity/P646v "/m/021821" .
what does the `Q12258SCD97A47E-A0CA-453F-B01A-DEE8829139BF` stand for ?