Task: Coherence Classification
Input (English): Sentence 1: I found a swimming pool full of green water this morning. 
 Sentence 3: The sales lady ran tests and sold me quite a lot of chemicals 
 Sentence 4:  I put the chemicals in my pool over the next two days 
 Sentence 5:  Saturday morning my pool finally looks crystal clear and clean 
 Option 1: I took a water sample to my local pool supply store. 
 Option 2: I knew it was worse than something I could fix, so I called a repairman.
Output (English): Option 1