Sentence 1: Tim was having a party at his house. 
 Sentence 3: Tim played music over his huge surround sound system 
 Sentence 4:  Soon after, he received a knock on the door 
 Sentence 5:  The police told Tim to keep the music down 
 Option 1: Tim invited all the bullies who bullied him. 
 Option 2: He invited all of his friends.