Detailed Instructions: 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: She happened to pick up the key of Mrs. Inglethorp's despatch-case, which had been lost that morning. Sentence 2: She got a hold of the previously missing key to the despatch-case.
A:
yes