About: http://webisa.webdatacommons.org/323144988

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 shape of the grooves and projections are preferably such as to prevent them from easily separating, especially in the direction generally perpendicular to the inclined surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com