What is the {human} for {father} of {David Foster}
Who's David Foster's father?
Who is the father of David Foster?
SELECT DISTINCT ?d WHERE { resource:David_Foster property:father ?d . ?d rdf:type ontology:human }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q77112> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P22> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?obj where { wd:Q77112 wdt:P22 ?obj . ?obj wdt:P31 wd:Q5 } 
Maurice Foster