Q: 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.
Sentence 1: However, a legal services lawyer from Spokane filed a lawsuit challenging the department's refusal to pay for the man's dentures. Sentence 2: The department's decision to not pay for the man's dentures went unchallenged.
A:
yes