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: They were highly skilled in such manual activities as thatching and weaving. Sentence 2: There were no skills.
Example Output: yes

Example Input: Sentence 1: 14 The labor required to install an absorber vessel and ductwork is a major portion of the system installation man-hours. Sentence 2: Installing an absorber vessel and ductwork requires more workers than any other part of system installation.
Example Output:
no