About: http://webisa.webdatacommons.org/409134677

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 method is an estimate, and you should allow for some variability in accuracy.
http://www.w3.org/ns/prov#wasQuotedFrom	ultrarunning.com