About: http://webisa.webdatacommons.org/81687355

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	In an off-line embodiment of the present invention, buyers, the intermediary and sellers communicate by using a telephone, fax machine, postal mail, or other off-line communication tools.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com