Did {Charles_Dickens} {father} {John Dickens}?
Was Charles Dickens the father of John Dickens?
Was Charles Dickens father John Dickens?
ASK WHERE { resource:Charles_Dickens property:father resource:John_Dickens }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q5686> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P22> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q4166950>. } 
ASK WHERE { wd:Q5686 wdt:P22 wd:Q4166950 }