What is the word of the emblem of Shanghai World Expo in the creative modeling of calligraphy?

Interpretation of the emblem: The emblem of China 20 10 Shanghai World Expo is modeled on the calligraphy creativity of China's Chinese character "Shi". The figure "stone" refers to three people hugging each other with their arms, which looks like a happy family, and can also be abstracted as "you, me and him" in a broad sense. It pursues a beautiful and harmonious life and expresses the "understanding, communication and happiness" of the World Expo.

Note: The Expo emblem is the symbol of China 20 10 Shanghai World Expo. Any individual or organization should cherish and respect the emblem of the Shanghai World Expo, and use the emblem of the Shanghai World Expo in accordance with the provisions of the Measures for the Administration of the Use of Expo Signs. Users should maintain the image of Shanghai World Expo and use the emblem of Shanghai World Expo correctly. The use of the emblem of the Shanghai World Expo shall conform to the usage norms determined by the Bureau of Shanghai World Expo Coordination.