About: http://webisa.webdatacommons.org/109264962

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	And the masks are an option, but on these two types, is there a severe limitation on the amount of oxygen on board?
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net