About: http://webisa.webdatacommons.org/455804503

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	Looking at the rules, you will see the exchange is a number which increases by one for each contract.
http://www.w3.org/ns/prov#wasQuotedFrom	nk7z.net