<http://webisa.webdatacommons.org/63803948> <http://www.w3.org/ns/prov#wasQuotedFrom> <post-gazette.com> . <http://webisa.webdatacommons.org/prov/465795017> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/63803948> . <http://webisa.webdatacommons.org/63803948> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/63803948> <http://www.w3.org/ns/prov#value> "Certainly there was no such thing as air-conditioning." .