Definition: 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.
Input: A bunk bed is a stack of two or more beds .
Output:
A bunk bed is a type of bed in which one bed frame is stacked on top of another , allowing two or more beds to occupy the floor space usually required by just one .