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.

Ex Input:
Sentence 1: The crowds thinned and the tent city rose around them, mostly empty at this time in the morning. Sentence 2: It was really busy that morning.

Ex Output:
yes


Ex Input:
Sentence 1: Others believed that only total (historical) costs should be used. Sentence 2: And the others believed that only thistorical (total) costs should be used.

Ex Output:
yes


Ex Input:
Sentence 1: These are the same types of concerns facing federal agencies. Sentence 2: These concerns include costs and delivery schedules.

Ex Output:

no