About: http://webisa.webdatacommons.org/102815428

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 do not know much about shaders but if branching is a problem you may consider something like this:
http://www.w3.org/ns/prov#wasQuotedFrom	openpandora.org