| http://www.w3.org/ns/prov#value | - lthough it is controversial, the fact of the matter is we should give credit to the people who invented these new forms of oil and natural gas drilling generally known as fracking, hydraulic fracking and so forth. those are resources that help us find pore of this stuff. we can have a discussion about recommendation and so forth. it is very controversial. that has materially changed the economic str
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