About: http://webisa.webdatacommons.org/282046286

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	To monitor card balance, the service management computer starts an interval timer set to expire at a fixed time, such as 30 seconds, ahead of exhaustion of the card balance.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com