<http://webisa.webdatacommons.org/prov/88488654> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/37458445> . <http://webisa.webdatacommons.org/37458445> <http://www.w3.org/ns/prov#value> "In any event, flood agriculture is particularly inefficient -- yet the city, which once could do so, might need to feed itself locally someday." . <http://webisa.webdatacommons.org/37458445> <http://www.w3.org/ns/prov#wasQuotedFrom> <roguecolumnist.com> . <http://webisa.webdatacommons.org/37458445> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .