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: Accuracy and usefulness of the breath alcohol analyzer. Sentence 2: The breath alcohol analyzer's accuracy needs to be improved in order for its usefulness to improve.
Example Output: no

Example Input: Sentence 1: He told of his doomed village, the red armored demons who ate the flesh of the old men. Sentence 2: He said his village was thriving.
Example Output: yes

Example Input: Sentence 1: In the 13th-century cloistered cemetery of the Camposanto (Holy Ground believed to be filled with sacred dirt brought back from the Holy Land during the Crusades), note the Gothic tabernacle enclosing a Madonna and Saints. Sentence 2: The cemetery was destroyed during the Great Crusades in the 13th century.
Example Output:
yes