About: http://webisa.webdatacommons.org/313319991

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	This tool is the best bang for the buck - there are better and more precise that without any knowledge, just by observing instructions do the trick - at approx 10 times the price.
http://www.w3.org/ns/prov#wasQuotedFrom	head-fi.org