<http://webisa.webdatacommons.org/173716988> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/145763856> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/173716988> . <http://webisa.webdatacommons.org/173716988> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/173716988> <http://www.w3.org/ns/prov#value> "These audio EVAC systems are typically deployed in commercial establishments or facilities such as factories, processing plants, warehouses and institutional facilities." . <http://webisa.webdatacommons.org/prov/51081573> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/173716988> .