About: http://webisa.webdatacommons.org/293529561

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	In some embodiments, the integer is 3, 7, 15, 31, 63, 127, 255, or any number 2n-1 where n is an integer greater than or equal to 2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com