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: Tim was coming home from work. He was walking up his driveway. He heard small voices from inside his home. He got very scared. It turns out it was his friends who threw a surprise party.
 selected sentence: He heard small voices from inside his home.

Tim's friends talk >Causes/Enables> Tim hears voices