You will be given a definition of a task first, then some input of the task.
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.

Sentence 1: It is intended to be a useful aid for criminal investigators by discussing the various tools and other resources available for assisting investigations involving electronic evidence. Sentence 2: It is not a very useful aid where investigations that include electronic evidence investigation are involved.
Output:
yes