About: http://webisa.webdatacommons.org/422839472

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 holes are preferably of diamond shape, although other shapes such as triangles may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com