Ключевые слова: 1, 2, 3, 4, 5, 6, 7, 8, 9, accessibility, aluminum, apartment, apartment block, archictecture, arrow, build, building, button, chrome, corridor, count, digit, direction, elevator, elevators, enterprise, floor, floors, go, graphic, guide, hospital, icon, metallic, moving up, number, numeral, numerical, pointing, progress, second, sign1 directional, signboard, stairway, transportation, two,