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: Quality-of-life drugs offer not just the pleasing possibility that you can do something about impotence, baldness, blackened toenails. Sentence 2: Quality life drugs cannot help those suffering from impotence.
Example Output: yes

Example Input: Sentence 1: Because it is a win-at-all-costs war to restore military prestige, Russian generals have shown utter indifference to civilian casualties and a willingness to lie to retain popular support. Sentence 2: Russian generals have assassinated many people in the past.
Example Output: no

Example Input: Sentence 1: The book strands the reader in the musty groves of academe and mutes the passions of the subtitle, says Jungian analyst Claire Douglas in the Washington Post Book World . (Harvard University Press plugs the book.) Sentence 2: Douglas was interviewed by the New York Times.
Example Output:
yes