About: http://webisa.webdatacommons.org/246485810

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	There are many reasons including the fact that for interactive content there is little interoperability, i.e., the ability to take content from multiple authors and run it, unchanged, from multiple learning servers.
http://www.w3.org/ns/prov#wasQuotedFrom	dlib.org