What is {has cause} of {brain} that is {of} is {ontogeny} ?
Give me the cause of brain ontogeny?
SELECT ?obj WHERE { wd:Q1073 p:P828 ?s . ?s ps:P828 ?obj . ?s pq:P642 wd:Q193603 }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1073> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P828> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P642> <http://wikidata.dbpedia.org/resource/Q193603>
} 

Name the cause of brain ontogeny.