About: http://webisa.webdatacommons.org/139483217

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	placement - a string including numbers 1, 2, 3, and/or 4, indicating in which ad positions this advertisement may appear.
http://www.w3.org/ns/prov#wasQuotedFrom	xav.com