The robber Q entered the room from the window or from the door. It was found that Q did not enter the room from the door, so he must have entered the room from the window. Which of the following is most similar to the structure of the above certification? ['A calligraphy and painting excavated in recent archeology are either of the Tang Dynasty or the Song Dynasty. It has been identified that this calligraphy and painting is of the Tang Dynasty, so it must not be of the Song Dynasty.', 'At midnight, the brightest star in the sky is either Cowherd or Weaver. It has been confirmed that the brightest star in the sky is not Weaver, so it must be Cowherd.', 'If a number is divisible by 8, it can be divided by 4. A number X cannot be divided by 4, so X cannot be divided by 8.', 'Xiaohua usually surfs the Internet or sends and receives emails, or chats with QQ, or plays games. On Sunday afternoon, she did not have a QQ chat on the Internet, so she must have sent and received emails.']