In an exam, there are three questions about tourist attractions in Beijing, requiring candidates to choose the name of a scenic spot as the only answer to each question. The answers of six candidates to the above three questions are as follows: the first candidate: Temple of Heaven, Temple of Heaven, Tiananmen Square; the second candidate: Tiananmen Square, Tiananmen Square; the third candidate: the Forbidden City, the Forbidden City; the fourth candidate: the Temple of Heaven, Tiananmen Square; the fifth candidate: Tiananmen Square, the Forbidden City; the sixth candidate: the Forbidden City, Tiananmen Square, the Forbidden City. The examination results show that each examinee has answered at least one of the questions correctly.
the order of answers to these three questions?
Temple of Heaven, Temple of Heaven, Imperial Palace