<http://webisa.webdatacommons.org/214970627>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/214970627>	<http://www.w3.org/ns/prov#value>	"The additional heating can be maintained conveniently through use of electrical resistance heating elements immersed in the oil, or through alternate heat sources such as gas or oil-fired heaters." .
<http://webisa.webdatacommons.org/214970627>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/281623939>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/214970627> .