About: http://webisa.webdatacommons.org/32845737

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	Screw shaped undulations can be defined by a cross-section of the conduit, for instance, oval, rectangular, elliptical or other geometric shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com