About: http://webisa.webdatacommons.org/297531911

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	The problem is known as ???acid mine drainage??? and it has affected mining regions around the world, including Canada.
http://www.w3.org/ns/prov#wasQuotedFrom	thisishell.net