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.

Sentence1: It snowed so hard that school was called off for the day. Sentence2: The boys put on their coats, hats, gloves and boots and went outside. Sentence3: They built a tall snowman and a snow fort. Sentence4: They had a snowball fight.
They went inside to roast marshmallows.