Sentence 1: Aaron was having a birthday party. 
 Sentence 3: He was showing off and he took water balloon as far as he could 
 Sentence 4:  His balloon went over his neighbor's fence and hit one of their emus 
 Sentence 5:  Aaron feels terrible to this day because he broke the emu's neck 
 Option 1: He invited all friends but none came. 
 Option 2: All his friends were there.