└ Uniforms, work clothes
         └ Work shoes, safety shoes
            ├ sneaker
            ├ Slippers, sandals
            ├ rubber boots
            ├ shoes
            ├ arctic boots
            ├ electrostatic shoes
            ├ heat-resistant shoes
            ├ Waterproof shoes, oil-resistant shoes
            ├ Safety shoes for pavement
            ├ Safety shoes for high places
            └ Other work shoes, safety shoes
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