About: http://webisa.webdatacommons.org/237278241

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 not trained in reading patentease but Patent 5,226,161 [uspto.gov] sounds a lot like Perl's tie feature where you can link a variable to a data object such as a file, database, serial port, shared memory, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org