About: http://webisa.webdatacommons.org/24729153

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	Coal prices, like other commodity prices, may seem like they should be decently predictable.
http://www.w3.org/ns/prov#wasQuotedFrom	upenn.edu