About: http://webisa.webdatacommons.org/279432832

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	You missed one major point here, you are looking at phosphate bearing minerals where as fertilizer is chemicals such as Potassium hydroxide.
http://www.w3.org/ns/prov#wasQuotedFrom	wcmcoop.com