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: Lulu was in the school play. The event was tonight. She was very nervous. She got on stage and froze because she forgot her lines. Thankfully no one could tell.
 selected sentence: Thankfully no one could tell.

No one pays attention >Causes/Enables> No one can tell