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: She had finally broken it off with John. He'd been controlling and sometimes violent. She heard the sirens before the cop car pulled up. They'd found her ex-boyfriend with a pair of binoculars in a tree. He said he'd only been watching birds.
 selected sentence: She had finally broken it off with John.

She decides to break up >Causes/Enables> John breaks up