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: Ellie wanted a fish tank. Sentence2: She went and bought a big aquarium. Sentence3: Then she filled it with fresh clean water and gravel. Sentence4: Lastly, she added her fish.

Ellie thought it looked great.