if oil is heated then that oil will expand / sunset
thermally_enhanced_oil_recovery is not enhanced_oil_recovery. drying_oil is vegetable_oil. thermally_enhanced_oil_recovery is enhanced_oil_recovery. olive_oil is not oil. sunflower_oil is vegetable_oil. olive_oil is salad_oil. tall_oil is oil. tall_oil is not oil. olive_oil is oil. oil is oil_paint.