About: http://webisa.webdatacommons.org/104793839

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 am trying to parse expressions like he did [something called :action], where action is a variable and the brackets imply that the block is optional.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com