About: http://webisa.webdatacommons.org/174538494

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	Alternatively, the sensor may have a form of an opening connected to a hose for withdrawing a gas sample.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com