About: http://webisa.webdatacommons.org/131143639

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	In some situations, a gas such as air or carbon dioxide is then allowed to flow from the endoscope.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com