About: http://webisa.webdatacommons.org/325064735

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	However, it is preferred to use ketjenblack or acetylene black, which is a kind of carbon black and which is effective even when incorporated in a small amount.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com