About: http://webisa.webdatacommons.org/426161061

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	There, in the middle of the book, was an algorithm for calculating the area of an arbitrary polygon.
http://www.w3.org/ns/prov#wasQuotedFrom	reddit.com