What is {time of invention} of {crafted from} of {carbon nanotube} ?
What is made from carbon nanotubes?
What is crafted from the invention of carbon nanotube?
SELECT ?v WHERE { ?a property:time_of_discovery_or_invention ?v . resource:carbon_nanotube property:made_from_material ?a }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1778729> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P186>. ?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/P575> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q1778729 wdt:P186 ?X . ?X wdt:P575 ?answer}
1789-01-01T00:00:00Z