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: Becker, Howard S. Problems of Inference and Proof in Participant Observation. Sentence 2: Problems of Inference and Proof in Participant Observation is related to Howard Becker.
Example Output: yes

Example Input: Sentence 1: Drew commented on that, and Nye answered: "Old Man knows what's he's doin'. Sentence 2: Nye responded, "Old Man is totally in the dark here. 
Example Output: yes

Example Input: Sentence 1: The next day everyone insisted it was just a misunderstanding. Sentence 2: The next day it was clear the misunderstanding was the result of deep seated conflicts.
Example Output:
yes