About: http://webisa.webdatacommons.org/17878389

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	However, in recent years the availability of the non-renewable resources such as coal has become a major issue in the United States.
http://www.w3.org/ns/prov#wasQuotedFrom	teenink.com