Assertion: propane | /r/HasProperty | a fossil fuel
Facets:
Source sentences:
text: Propane is a fossil fuel that does not occur in isolation.
text: Propane and natural gas are both fossil fuels, and both are largely produced domestically.
text: Propane is called a fossil fuel because it was formed millions of years ago from the remains of tiny sea animals and plants.
text: Propane is just one of the many fossil fuels that are included in the liquefied petroleum (LP) gas family.
text: Although propane is a fossil fuel, it’s a hydrocarbon and over 95 percent of the propane used in the US is produced in North America.