About: http://webisa.webdatacommons.org/201280316

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 gaps may be of any desired shape, such as circular, but better results are achieved if the gaps are in the form of elongate slots.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com