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: Upper Egypt was the heartland of the Kingdom at the peak of its power and influence, and the remains of its ancient cities form one of the most important and breathtaking archaeological collections in the world. Sentence 2: Upper Egypt was never actually in Egypt.
Example Output: no

Example Input: Sentence 1: Illustration on the Table of Contents by Mark Alan Stamaty. Sentence 2: There are no illustrations.
Example Output: yes

Example Input: Sentence 1: Two had dirty calico shirts loose above hide breech-clouts. Sentence 2: Two of them were wearing dirty shirts.
Example Output:
yes