What is the {race horse} for {child} of {Seabiscuit}
Which horses did Seabiscuit father?
Who is the child of Seabiscuit?
SELECT DISTINCT ?s WHERE { ?s rdf:type ontology:Q10855242 . resource:Seabiscuit property:child ?s }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1500356> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?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/Q10855242> } 
 select distinct ?obj where { wd:Q1500356 wdt:P40 ?obj . ?obj wdt:P31 wd:Q10855242 } 