Project(BGP( ?action_type <http://www.w3.org/2000/01/rdf-schema#subClassOf>+ <http://schema.org/Action> .
             ?action_type <http://www.w3.org/2000/01/rdf-schema#label> ?label .
             ?action_type <http://www.w3.org/2000/01/rdf-schema#subClassOf> ?immediate_supertype),
        {?label, ?action_type, ?immediate_supertype})