About: http://webisa.webdatacommons.org/392370359

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Because if you get a single bubble up and have an ignition source you can have a flash over.??? A flash over is an explosion, like the kind you can see if you leave the gas on too long before lighting a propane grill.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com