About: http://webisa.webdatacommons.org/355189949

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 the preferred embodiment, the second reservoir 44 is made of a metallic material such as aluminum or stainless steel, preferably the same material as the compressor 16.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com