About: http://webisa.webdatacommons.org/273669427

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	small quantities of clay minerals (montmorillonite, attapulgite, sepiolite) or water soluble polymers such as polystyrene sulfonates, cellulose derivatives, and mixtures thereof;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com