What is {represented by} of {Henry Moore} that is {object has role} is {copyright holder} ?
Which copyrights holds Henry Moore?
What is { represented by } of { Henry Moore } that is { a role for an object } is { copyright holder }?
SELECT ?i WHERE { ?x property:represented_by ?i . ?x property:object_has_role resource:copyright_holder . resource:Henry_Moore property:represented_by ?x }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q151097> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1875> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P3831> <http://wikidata.dbpedia.org/resource/Q29014674>
} 

SELECT ?obj WHERE { wd:Q151097 p:P1875 ?s . ?s ps:P1875 ?obj . ?s pq:P3831 wd:Q29014674 }