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: Illustration on the Table of Contents by Mark Alan Stamaty. Sentence 2: There are no illustrations.

Output: yes


Input: Consider Input: Sentence 1: But not many more. Sentence 2: It's not happening anymore.

Output: no


Input: Consider Input: Sentence 1: Petra was largely created in the first to third centuries b.c. by the Nabateans, an Arabic tribe who grew rich from trading with (and extracting protection money from) the great caravans which passed this way. Sentence 2: Petra has been around since the first to third century b.c.


Output: yes