About: http://webisa.webdatacommons.org/168762273

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	include variations in (1) naturally occurring phosphorus; (2) precipitation; (3) soil types and characteristics such as particle size, porosity, and
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov