What is {built out of} of {operates} of {Air China} ?
What is the construction of Air China?
What does Air China build?
SELECT ?v WHERE { resource:Air_China property:item_operated ?b . ?b property:made_from_material ?v }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q51747> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P121>. ?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/P186> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q51747 wdt:P121 ?X . ?X wdt:P186 ?answer}
composite material titanium steel composite material Al-Li aluminium composite material aluminium composite material