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: Upon consideration of the initial comments it received, the Commission declined to pursue the contract rate proposal, but solicited further comments on several broad issues concerning possible changes in the mail classification system. Sentence 2: Although the Commission declined to further pursue the contract rate proposal after considering the initial comments they received, they did decide to seek additional feedback on issues related to changes in the mail classification system.
Example Output: yes

Example Input: Sentence 1: The cooler climate makes jungle walks here a special pleasure, not least of all for the myriad brightly colored butterflies around the waterfalls, with almost a dozen officially listed. Sentence 2: Walking in the jungle here is pleasurable as it is cooler.
Example Output: yes

Example Input: Sentence 1: He lowered his head. Sentence 2: He put his head down.
Example Output:
yes