About: http://webisa.webdatacommons.org/340290137

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, the grooves may alternatively be formed by appropriate means such as etching in an appropriate shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com