sentence: Construction workers wear plastic helmets to protect their heads from falling objects.
sentences_before: Soldiers wear steel helmets to protect their heads from explosions and bullets.
sentences_after: Welders wear special helmets with a lens that lets less light through. This protects their eyes from the bright light of welding. Bicycle riders wear plastic and foam helmets to protect their heads in case they have an accident. Motorcycle riders wear helmets to protect their heads in case they have an accident. People who ride horses often wear helmets, to protect them if they fall off the horse.
concept_name: construction worker
headings: Helmet Types of helmets
categories: Protective clothing