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: Karen got a new phone for her birthday. She loved to play games on it. It was shiny and pretty. Karen dropped her phone and broke the screen. She was very sad.
 selected sentence: Karen got a new phone for her birthday.

Karen has a birthday >Causes/Enables> Karen got a new phone for her birthday