Assertion: kerosene | /r/HasProperty | principal product
Facets:
Source sentences:
text: Originally a by-product of the petroleum industry (kerosene being the principal product), gasoline became the preferred automobile fuel because of its high energy of combustion and capacity to mix readily with air in a carburetor.
text: Gasoline was not invented, it is a natural by-product of the petroleum industry, kerosene being the principal product.