| http://www.w3.org/ns/prov#value | - Each leg 52 is provided with a hip joint 55, a knee joint 56, and an ankle joint 57 at its proximal portion adjacent to the body 53 (the portion connected to the body 53), its middle portion, and its distal portion, respectively, which are operated by actuators, such as electric motors, and a foot 58 is connected to the distal portion of each leg 52 through the ankle joint 57.
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