In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Alternatives to stairways are elevators and inclined moving sidewalks .
Some alternatives to stairs are elevators ( lifts in British English ) , stairlifts and inclined moving walkways as well as stationary inclined sidewalks ( pavements in British English ) .