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In this picture taken on November 6, 2013, a Japanese elderly care company Asahi Sun Clean employee (top) wearing a power suit, called “Muscle Suit” powered by compressed air stored in an air tank on his back, lifts a fellow worker during a demonstration at the annual Internatinal Robot Exhibition in Tokyo. Pneumatic muscle suits and a walking stick that behaves like a guide dog competed for attention with an industrial robot that can paint fingernails at a huge expo in Tokyo on November 7, 2013. AFP PHOTO / Yoshikazu TSUNO