What is the Commons category for Stéphane Grappelli who was buried in the Crématorium-columbarium du Père-Lachaise?
SELECT ?value WHERE { wd:/Stéphane Grappelli/ p:/place of burial/ ?s . ?s ps:/place of burial/ wd:/Crématorium-columbarium du Père-Lachaise/ . ?s pq:/Commons category/ ?value}