About: http://webisa.webdatacommons.org/201884048

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	A gas, such as carbon dioxide, is maintained in the sealed operating space so that air does not enter the patient's cardiopulmonary system during a medical procedure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com