About: http://webisa.webdatacommons.org/405822994

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 grid portion 17 of the apparatus could also be made of glass, clear plastic, rigid wire, screening, thin wood, a variety of plastics, or other suitable materials provided they fulfill the criteria stated above.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com