Project(Filter(regex(str(?p) , "s$")  && ! exists((bgp, (triple, ?p, <http://schema.org/supercededBy>, ?p2))) ,
               BGP( ?p <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/1999/02/22-rdf-syntax-ns#Property>)),
        {?p})