Sentence 1: Roger had a fluffy pet rabbit hopping around his floor. 
 Sentence 3: The bunny remained stoically twitching his whiskers 
 Sentence 4:  Roger felt a deep and awful crunch under his back as he rolled over 
 Sentence 5:  He jumped up only to break down, destroyed at what he had done 
 Given Sentence 2: Delighted, he rolled and laughed.