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: Alexa woke up one night to a crashing sound. This frightened her. She took a bat out and went downstairs to see what happened. Alexa saw her next to a mess of things. It turned out, her cat knocked some items off of the counter.
 selected sentence: This frightened her.

A crashing sound wakes Alexa up >Causes/Enables> Alexa is frightened 