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: Batalha Abbey (see page 45) was built in gratitude. Sentence 2: As a showing of thanks, Batalha Abbey was constructed.
Example Output: yes

Example Input: Sentence 1: This is where the cruise boats dock. Sentence 2: The cruise boats dock here.
Example Output: yes

Example Input: Sentence 1: It must be. Sentence 2: It could be.
Example Output:
yes