About: http://webisa.webdatacommons.org/8973656

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	Gradually, the need for operators was eliminated for all calls except long distance and collect calls.
http://www.w3.org/ns/prov#wasQuotedFrom	ethw.org