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.
Q: Sentence1: Linda was lying on the couch watching TV when the phone rang. Sentence2: When she got up to answer it she tripped over the dog and fell down. Sentence3: It wasn't funny at all but her brother Sam started laughing at her. Sentence4: As Linda got up off the floor she threw a pillow at Sam.
A:
Before he could throw it back Linda ran out of the room laughing.