About: http://webisa.webdatacommons.org/12239712

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	I never thought of it like that but you are absolutely right when you said the oil used for the machinery to harvest is a factor.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com