About: http://webisa.webdatacommons.org/439953041

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	This solution is often an approximation of the correct solution, especially in problems where an exact solution is either impossible, intractable (requires infinite time or resources), or simply unnecessary.
http://www.w3.org/ns/prov#wasQuotedFrom	cplusplus.com