About: http://webisa.webdatacommons.org/438778591

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	First of all, there was an incentive to use clean burning, but slightly more expensive anthracite coal rather than the cheaper but dirtier high sulfur content variety; less risk of lawsuits.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com