About: http://webisa.webdatacommons.org/330423129

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	I usually simply tell clients that while I am happy to answer ad hoc emails and phone calls, if there is request that requires us to 'do something' such as research, development, a quick tweak, document updates, etc. then it is billable.
http://www.w3.org/ns/prov#wasQuotedFrom	sitepoint.com