About: http://webisa.webdatacommons.org/422076186

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	A sale or purchase is conditional, i.e. money is paid on condition work is delivered and/or work is delivered on condition money is paid.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalproductions.co.uk