About: http://webisa.webdatacommons.org/308749610

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 my personal experience, I have had better results from natural materials, such as crystals, and varying forms of metal, brass, silver and so on.
http://www.w3.org/ns/prov#wasQuotedFrom	care2.com