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.

Q: Sentence 1: activities calculated with data collected in 1985. Sentence 2: The data was collected in 1985

A: yes
****
Q: Sentence 1: Like Jon, his head was bare. Sentence 2: His head had nothing on it.

A: yes
****
Q: Sentence 1: Jon hadn't seen anything like it in his whole life. Sentence 2: This was the first time Jon had seen something like this. 

A:
yes
****