Task: Coherence Classification
Input (English): Sentence 1: Lawrence and his buddies were going to float down a river. 
 Sentence 3: They all hopped in their tubes and started floating 
 Sentence 4:  They went several miles, having a good time all the while 
 Sentence 5:  They all agreed it was a great trip down the river 
 Given Sentence 2: They showed up at the river banks ready to go.
Output (English): Yes