About: http://webisa.webdatacommons.org/166801950

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	The mask assembly is connected through a tube to a control unit that controls the flow of air or other gas to the patient.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca