What is {chairman} of {developed by} of {ARPANET} ?
Which chairman developed ARPANET?
Who is the chairman that developed ARPANET?
SELECT ?o WHERE { ?k property:chairperson ?o . resource:ARPANET property:developer ?k }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q177524> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P178>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P488> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q177524 wdt:P178 ?X . ?X wdt:P488 ?answer}
L. Rafael Reif Cynthia Barnhart