Task: Question Generation
Input (English): The Color Orange democracy group, led by Danish sculptor Jens Galschiøt, originally planned to join the Hong Kong Alliance relay and paint the "Pillar of Shame", a structure he built in Hong Kong to commemorate the 1989 Tiananmen Square protests. However, Galschiøt and two other people were denied entry to Hong Kong on April 26, 2008 due to "immigration reasons" and were forced to leave Hong Kong. In response, Lee Cheuk Yan, vice chairman of the Hong Kong Alliance in Support of Patriotic Democratic Movements in China, said, "It's outrageous that the government is willing to sacrifice the image of Hong Kong because of the torch relay." Hollywood actress Mia Farrow was also briefly questioned at the Hong Kong airport though officials allowed her to enter. She later gave a speech criticizing China's relations with Sudan in Hong Kong, as there was also a small minority of people protesting about China's role in the crisis of Darfur. Legislator Cheung Man Kwong have also said the government's decision allowing Farrow to enter while denying others is a double standard and a violation to Hong Kong's one country, two systems policy.
Output (English): What did Galschiøt construct in Hong Kong in reference to the Tiananmen Square protests?