What is the {human} for {manager/director} of {CERN}
Who is the head of Cern ?
 select distinct ?obj where { wd:Q42944 wdt:P1037 ?obj . ?obj wdt:P31 wd:Q5 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42944> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1037> . ?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> } 
Who is the head of Cern ?