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: Gina's friend Mary wouldn't share. Sentence2: They both needed to use the school library books about dolphins. Sentence3: But Mary had beaten Gina and taken them all. Sentence4: And now she refused to share the books.

Gina's mother had to call Mary's mom to complain.