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: GAO's Mission GAO examines the use of public funds; evaluates federal programs and activities; and provides analyses, options, recommendations, and other assistance to help the Congress make effective oversight, policy, and funding decisions. Sentence 2: The assistance is welcome to Congress.
Example Output: no

Example Input: Sentence 1: Try to get there early, as tours sell out quickly on busy days. Sentence 2: You should get there early in the morning as tours sell out quickly.  
Example Output: yes

Example Input: Sentence 1: A smart buyer also retains an inhouse staff that includes technical experts who can articulate the nature of technical services being bought, recognize good value during the negotiation of such services, and evaluate the quality of the services as they are provided. Sentence 2: Technical experts should be part of the inhouse staff if the buyer is smart.
Example Output:
yes