About: http://webisa.webdatacommons.org/389333880

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	Keywords such as THEN or STEP, and delimiters such as commas and parentheses, are dealt with just as though they were arithmetic operators.
http://www.w3.org/ns/prov#wasQuotedFrom	informationweek.com