About: http://webisa.webdatacommons.org/366022746

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	Also preferably, the ribbon is made of polyethylene or other inert, rigid material capable of supplying the active granules and being wound or molded into a spiral or helix, and the filtration media includes activated charcoal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com