Definition: 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: I found out that it was my friend's birthday tomorrow. Sentence2: I decided that I should make a cake. Sentence3: I didn't have flour for the cake! Sentence4: I went to the store and forgot to buy what I was there for.

I was relieved when the next day someone brought cupcakes.