About: http://webisa.webdatacommons.org/187554774

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	Rock phosphate is mainly used to produce phosphate, also used in chemical industry such as pharmaceutical, gunpowder, etc, in the industry is widely used.
http://www.w3.org/ns/prov#wasQuotedFrom	raymondmill.com