About: http://webisa.webdatacommons.org/102248824

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	not good, except for checking work, because they can work the entire problem
http://www.w3.org/ns/prov#wasQuotedFrom	mathforum.org