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.

Input: Consider 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.  

Output: no


Input: Consider Input: Sentence 1: i got this cough i've got a cold because it was eighty degrees up here and i went outside with no coat on Sentence 2: Last week it was 80 degrees outside on monday and I went out without a coat.

Output: no


Input: Consider Input: Sentence 1: The fact, according to geologists, is that the Kathmandu Valley was indeed once a lake, though the valley's waters now drain through the narrow cleft of Chobar Gorge, which was most likely created by a large earthquake.) Sentence 2: The fact, according to geologists, is that the Kathmandu Valley has never contained a significant amount of water. 


Output: yes