About: http://webisa.webdatacommons.org/322269751

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	When you stop all the way down oil tends to be a larger undefined gray area rather than the smaller and more defined blackness of hairs, grit and other things sitting on the filter.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com