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: a blond woman kissing the cheek of a brown-haired man. <sep> A man and a woman sharing a kiss on the cheek.
Example Output: yes

Example Input: A young boy giving his brother a piggyback ride <sep> a boy is giving his brother a ride
Example Output: yes

Example Input: A brown dog sniffing at the fence of a brown bull. <sep> The brown dog was looking intently at the bull on the other side.
Example Output:
no