About: http://webisa.webdatacommons.org/291675067

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	However, other cross-sections such as rectangular or quadratic may be preferred for some uses, since they may provide a better friction against the tube's outer surface.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk