Ключевые слова: action, active, aim, asphalt, concept, concrete, destination, detail, endeavor, exercise, feet, foot, footstep, forward, forward motion, forward movement, go straight, gray, ground, healthy, journey, leg, legs, life, lifestyle, man, motion, moving, moving forward, pace, pattern, pavement, people, person, race, road, roadway, sidewalk, space, step, street, structure, target, tarmac, texture, tread, walk, way,