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: My friend nathan and his family went to the lake one summer. Sentence2: One day Nathan's dad left and didn't leave a lighter for his mom. Sentence3: Well his mom was very upset and made him walk to the store barefoot. Sentence4: Poor Nathan had to walk down a gravel road to bring his mom matches.
When Nathan returned, his mom apologized for being so mean.