About: http://webisa.webdatacommons.org/210230086

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	Although shown as square, the grooves may be of any shape, including rectangular, polygonal, rounded or even irregularly shaped.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com