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: While a cost-per-case analysis is limited in that it only addresses quantity, and not quality of services, it does provide some useful quantitative information. Sentence 2: Only quantity is examined, not quality.

Ex Output:
yes


Ex Input:
Sentence 1: Some have ample shade and others are treeless, catering to ardent sun worshippers. Sentence 2: People who like the sun prefer to go to bigger beaches with less trees.

Ex Output:
no


Ex Input:
Sentence 1: Social Security consists of two separate trust  Old-Age and Survivors Insurance, which funds retirement and survivors benefits, and Disability Insurance, which provides benefits to disabled workers and their families. Sentence 2: Old-Age and Survivors Insurance fund retirement and survivors benefits.

Ex Output:

yes