About: http://webisa.webdatacommons.org/426540699

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	These messages were conveyed through advertisements of all sorts, including newspapers and direct mail, but also billboards and even advertisements aboard city transportation systems.
http://www.w3.org/ns/prov#wasQuotedFrom	meforum.org