About: http://webisa.webdatacommons.org/68684589

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	It has also been known to provide lines of spaced ridges upon the bottom surface of an outsole, the ridges having sharp edges for gripping the walking surface to improve traction, e.g. upon wet surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com