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 changed the sheets on my bed last week. Sentence2: I was tired of the old ones. Sentence3: The new ones look nicer and feel better. Sentence4: I think I will keep them.

I am happy they weren't too expensive.