About: http://webisa.webdatacommons.org/401129386

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 regular cross-section may by any desired shape, such as circular, elliptical, square, rectangular or polygonal.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com