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.

Input: Consider Input: Sentence 1: The fruit and leaves feed crabs whose waste products in turn feed fish, prawns, and mollusks. Sentence 2: Without the crabs' waste, fish, mollusks, and prawns wouldn't have as much food.

Output: no


Input: Consider Input: Sentence 1: hum yep the more cars the merrier the paperwork Sentence 2: Paperwork is very minimal while owning multiple cars.

Output: yes


Input: Consider Input: Sentence 1: Postal Service, which is not subject to the travel rules that apply to most federal agencies--said that the Service does not prohibit its employees from making personal use of the frequent flyer miles received on official travel. Sentence 2: The postal service has the same travel rules.


Output: yes