About: http://webisa.webdatacommons.org/4572959

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	My math teacher in school asked our class this exact question in one of those left as an exercise to the reader sort of situations.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com