Ключевые слова: ascending, climbing, direction, emergency, emergency case, environment, exit, extend, extending, fire engine, fire engine fire fighting vehicle, fire escape, fire fighting vehicle, fire ladder, fire truck, footstep, high, ladder, leaf, leaves, line, machine, mechanical, mechanics, motion, move, plans, protect, protection, rail, rail track, railroad, rails, railtrack, railway, ramp, rampup, rescue, rescue ladder, rise, risign, sky, speed, step, stepping, steps, stride, tall, technology, track, transit, transport, transportation, tree, truck, up, upwards, vehicle, verlocity, wedding,