About: http://webisa.webdatacommons.org/288185330

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 orifice may have any desired size and shape, such for example as a square, round, or otherwise shaped opening.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com