Instructions: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Tim's girlfriend Amy was always a cool and calm chick. Sentence2: Lately, Amy had shown signs of jealousy. Sentence3: Tim couldn't figure out what was wrong. Sentence4: Soon, her jealousy got even worse and Tim was ready to leave.
Output:
The next day, Amy got her period which explained the strong emotions.