A bus tied with a yellow ribbon moves on a street in north China's Tianjin, on May 12, 2009. Volunteers tied thousands of yellow ribbons on buses, buildings and trees as a way to commemorate the victims of the May 12, 2008 Wenchuan earthquake. [Xinhua]

Photo taken on May 12, 2009 shows a yellow ribbon tied on a tree on a street in north China's Tianjin. Volunteers tied thousands of yellow ribbons on buses, buildings and trees as a way to commemorate the victims of the May 12, 2008 Wenchuan earthquake.  [Xinhua]