TASK 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.
PROBLEM: Sentence1: Suzy went to the ice cream store. Sentence2: She ordered a vanilla milkshake. Sentence3: When she tried to pay the man for her milkshake, he smiled at her. Sentence4: He told her that she won a special contest.

SOLUTION: He gave her the milkshake for free.

PROBLEM: Sentence1: Tim just got a new phone. Sentence2: He had dropped it a few time hours within getting it. Sentence3: He decided he needed a case to protect his phone. Sentence4: He went to the local store and purchased a waterproof phone case.

SOLUTION: Tim didn't have to worry about dropping it in water anymore.

PROBLEM: Sentence1: Hannah was assigned a group project with some of her classmates. Sentence2: Once she met with them, she realized that they were very lazy. Sentence3: Hannah was forced to do all of the work for the project. Sentence4: She decided she was going to tell her professor what happened.

SOLUTION:
The professor decided to not give her classmates credit for her work.