About: http://webisa.webdatacommons.org/9213833

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	Instead, the angle range of 180 degrees can be divided into n almost equal segments and pattern directions can then be determined by possible combinations of any of the n segments where n is an integer equal to or greater than 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com