About: http://webisa.webdatacommons.org/430070406

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	>>> +/* If THIS symtab node is a variable, return a pointer to the
http://www.w3.org/ns/prov#wasQuotedFrom	ozlabs.org