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.

Example Input: Sentence 1: Since the business case in DOD places very little premium on meeting cost and schedule targets, but a very high premium on performance, programs succeed at the point where sunk costs make it difficult-if not prohibitive-for decision makers to cancel them. Sentence 2: Meeting schedule targets is something the DOD places a high premium on.
Example Output: yes

Example Input: Sentence 1: But the conflict itself might create such a tendency or incentive. Sentence 2: It's possible that the conflict could lead to a tendency or incentive of that sort.
Example Output: yes

Example Input: Sentence 1: "Callie!" At Kells' hail a boy swung down the loft ladder. Sentence 2: "Callie!" he said as he swung down the ladder.
Example Output:
yes