About: http://webisa.webdatacommons.org/151732423

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	In the case where the file is a notebook, the code is in fact the internal code from the .nb file that defines the notebook and so the expression that is returned is the .nb's Notebook[...] expression.
http://www.w3.org/ns/prov#wasQuotedFrom	wolfram.com