About: http://webisa.webdatacommons.org/88793969

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	Typically, such compositions contain a builder material which serves a variety of functions, including water hardness sequestration, soil peptization, pH control, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com