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: He told of his doomed village, the red armored demons who ate the flesh of the old men. Sentence 2: He said his village was thriving.

Ex Output:
yes


Ex Input:
Sentence 1: Then there are programs designed to do damage. Sentence 2: Some programs are designed to do damage, said the teacher.

Ex Output:
no


Ex Input:
Sentence 1: how often does he do it Sentence 2: How often does he do it? 

Ex Output:

yes