About: http://webisa.webdatacommons.org/35592503

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	It means they are not made from oil or natural gas or other non-renewable fossil fuels.
http://www.w3.org/ns/prov#wasQuotedFrom	ppec-paper.com