Sentence 1: Anthony was in class one day and really needed to fart. 
 Sentence 3: Before he knew what was happening, the fart snuck out 
 Sentence 4:  He tried to breathe in the fart before she could smell it 
 Sentence 5:  Unfortunately for him, his plan didn't work and she smelled it 
 Given Sentence 2: The problem was, he was sitting right behind a pretty girl.