About: http://webisa.webdatacommons.org/211572011

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	The charcoal-like solid substance mixed with cracked oil can be removed by means such as percolation and others.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com