Definition: You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".
Input: Sentence1: Senator Hill appeared completely unaware of the issue , which has been of serious concern to US , Australian and British intelligence officers ., Sentence2: But Senator Hill appeared unaware of the intelligence problems that have been of serious concern to US , Australian and British military intelligence officers .
Output:
Yes