About: http://webisa.webdatacommons.org/304973296

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	The flow resistor 912 is formed from a suitable elastic material, such as silicone, and is typically molded to include a dome-like valve structure 950.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com