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: Milton hated camping. Sentence2: His least favorite part was singing around a fire. Sentence3: His dad played guitar poorly and his mom couldn't sing. Sentence4: When they were roasting marshmallows a bear came to the site.

Mom started singing Kumbaya and the bear retreated instantly.