About: http://webisa.webdatacommons.org/93090718

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 FIG. 3a, includes a filter element 73 to remove particulate matter such as dirt, pollen and suspended debris.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com