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: (By contrast, Slate 's assessment relies entirely upon sources who are not identified by name.) Sentence 2: The names and origin of Slate's sources are not known.

Ex Output:
yes


Ex Input:
Sentence 1: no love for the Broncos but i've lived in uh Sentence 2: No Bronco love.

Ex Output:
yes


Ex Input:
Sentence 1: But a simple solution might be at hand. Sentence 2: There may be a simple solution available for the problem.

Ex Output:

yes