Given Sentence 1 and Sentence 2, indicate your answer as yes when the two sentences clearly agree or clearly disagree with each other. If the relationship cannot be determined, answer with 'no'.

Example Input: An accident involving a green Sudan and a gray van. <sep> Two cars waited patiently for the light to turn green.
Example Output: yes

Example Input: A gray rally car is being driven by two adult males while a large white container is tied down on top of the roof. <sep> Two men are sitting on the grass next to a car.
Example Output: yes

Example Input: A man and a boy behind the wheel of a car. <sep> The little boy and the man sit behind the car's steering wheel.
Example Output:
yes