About: http://webisa.webdatacommons.org/287840237

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	The point where the well becomes horizontal is its heel and the point furthest from the surface is called the toe.
http://www.w3.org/ns/prov#wasQuotedFrom	todaysmachiningworld.com