Input: Sentence 1: Post ies, on the other hand, obsess on the Times . Last month at the Post 's annual Pugwash editorial retreat, outgoing Managing Editor Robert Kaiser began his speech with the preposterous boast that the Post , with a staff half the size of the Times ', does more for its readers, day in and day out. Sentence 2: Editor Kaiser boasted that the Post was more efficient than the Times.
Output: 

 yes