Definition: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Input: story: Our cat Tibby likes to sleep on our bed at night. She sleeps in the corner. She is big, and makes it hard for one of us to stretch out. My wife put pillows in the corners, forcing Tibby into the middle. Now we can all sleep better.
 selected sentence: My wife put pillows in the corners, forcing Tibby into the middle.

Tibby sleeps on bed >Causes/Enables> Wife puts pillows on bed corners