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: Lorraine wanted to be helpful to her mama. Sentence2: She looked around for something that needed to be done. Sentence3: Lorraine noticed that there was trash under her mama's desk. Sentence4: She crawled under the desk easily to pick up the trash.

Her mama thanked her for being so helpful after she was finished.