artificial oil is a sink of light by shade
artificial_lighting is light_wave. oil_pressure_indicator_light is not indicator_light. indicator_light is not lamp. oil_lamp is lamp. artificial_lighting is not light_wave. oil_pressure_indicator_light is indicator_light. counterglow is light. oil_pressure_indicator_light is vehicle_part. oil_pressure_indicator_light is not vehicle_part. indicator_light is lamp.