Detailed Instructions: 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.
Q: Sentence 1: To take one obscure but critical Life on Earth remained entirely one-celled for 3 billion years. Sentence 2: Single-celled organisms ruled the earth for only a billion years before more complex life-forms came along.
A:
yes