About: http://webisa.webdatacommons.org/172643778

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	56. [56] It is not uncommon to find two thousand advertisements, principally of merchandise, contained in a single copy of a New York journal.
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org