About: http://webisa.webdatacommons.org/339624692

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	PTAs of various types.Prominent examples of PTAs include the North American Free Trade
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com