About: http://webisa.webdatacommons.org/198578713

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 variety of techniques, including injection of a compressed gas; such as argon, carbon dioxide, nitrogen, or helium; and spring actuation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au