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: Amanda really wanted to go the hockey game. Sentence2: She looked for tickets but saw that they were expensive. Sentence3: Amanda's boyfriend knew about this and decided he wanted to help. Sentence4: He went and bought the tickets for her Christmas gift.

Amanda was shocked when she unwrapped the gift and saw what they were.