sentences: a light bulb generates light
docs: car_light_bulb is light_bulb. light_bulb is light_source. light_bulbs is source_of_light. light_bulb is electric_lamp. incandescent_bulb is light_bulb. light_bulb is electrical_component. light_bulb_filament is electrical_component. car_light_bulb is car_light. light_bulb is lamp.