Assertion: motor oil | /r/HasProperty | lubricant
Facets:
Source sentences:
text: Motor oil is a lubricant used in internal combustion engines, which power cars, motorcycles, lawnmowers, engine-generators, and many other machines.
text: Motor oil is a lubricant created from base oils (mineral and/or synthetic) used to reduce the detrimental effects of friction and heat created inside internal combustion engines.