About: http://webisa.webdatacommons.org/246887837

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 inner cavity may be profiled to achieve any shape known in the art including, but not limited to, cylindrical, rectangular, triangular, trapezoidal, semi-circular, hourglass, serpentine or other suitable shapes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com