What is a spiral staircase?
A spiral staircase is a set of stairs that circles around a central pole and allows for a steeper ascent than other stair designs.
<START_INST>What is a spiral staircase?<END_INST><START_CTX><END_CTX><START_A>A spiral staircase is a set of stairs that circles around a central pole and allows for a steeper ascent than other stair designs.<END_A>