About: http://webisa.webdatacommons.org/172848735

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	Butterfly is the most unforgiving and difficult of all swimming techniques in the open water.
http://www.w3.org/ns/prov#wasQuotedFrom	worldopenwaterswimmingassociation.com