About: http://webisa.webdatacommons.org/37006435

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	Although charcoal is a natural filter for carbon monoxide, carbon dioxide, and other gasses, it is not efficient enough to filter the large amounts created on a daily basis.
http://www.w3.org/ns/prov#wasQuotedFrom	indymedia.org