About: http://webisa.webdatacommons.org/257650955

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	Heavy metals such as lead, cadmium, and arsenic may stay in the soil for a long time, and certain
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com