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.
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Question: Sentence 1: The fruit and leaves feed crabs whose waste products in turn feed fish, prawns, and mollusks. Sentence 2: Without the crabs' waste, fish, mollusks, and prawns wouldn't have as much food.

Answer: no


Question: Sentence 1: His old eyes bored into the younger man, and he nodded. Sentence 2: He did not look at the younger man.

Answer: yes


Question: Sentence 1: But as Mir floated in orbit, the Soviet Union fell apart. Sentence 2: The Soviet Union breakup happened rapidly.

Answer:
no