In this task, you're given a pair of sentences, sentence 1 and sentence 2. Your job is to determine if the two sentences clearly agree/disagree with each other, or if this can't be determined. Indicate your answer as yes or no respectively.

Ex Input:
Sentence 1: Natalia didn't comment, though her expression was even more dour than usual. Sentence 2: Natalia was quiet and sad.

Ex Output:
yes


Ex Input:
Sentence 1: Fruit, rum, and spices were once transported from the old docks, but in recent years the harbor area has been transformed. Sentence 2: The harbor area is now a large tourist draw. 

Ex Output:
no


Ex Input:
Sentence 1: I'm listening." Sentence 2: It is important to listen.  

Ex Output:

no