About: http://webisa.webdatacommons.org/101463419

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	What are they called? (a) PC companies (b) PA companies (c) PR companies (d) GP companiesAnswer(c) PR companies Sometimes an important piece of information is found in a book or other document.
http://www.w3.org/ns/prov#wasQuotedFrom	blogfa.com