Given the task definition and input, reply with output. 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: 5 The achievement of having the lowest cost person do the work is sometimes referred to as an outcome of lowest combined cost. Sentence 2: The work is done by the lowest cost person.
yes