About: http://webisa.webdatacommons.org/315780749

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	AdSubtract to snip paid search results IDG, Dec. 8, 2003 http://www.infoworld.com/article/03/12/08/HNadsubtract_1.html AdSubtract removes paid listings from search results as well as blocks other types of ads.
http://www.w3.org/ns/prov#wasQuotedFrom	searchenginewatch.com