Two Asian girls with lanterns attend a street fair for the upcoming Mid-Autumn festival at Chinatown in San Francisco, the United States, Sept. 22, 2012. The 22nd Mid-Autumn Street Fair held by the San Francisco Chinatown Merchant Association kicked off here on Saturday. (Xinhua/Liu Yilin)

Photo taken on Sept. 22, 2012 shows a street fair for the upcoming Mid-Autumn festival at Chinatown in San Francisco, the United States. The 22nd Mid-Autumn Street Fair held by the San Francisco Chinatown Merchant Association kicked off here on Saturday. (Xinhua/Liu Yilin)

A Chinese couple choose windmill at a street fair for the upcoming Mid-Autumn festival at Chinatown in San Francisco, the United States, Sept. 22, 2012. The 22nd Mid-Autumn Street Fair held by the San Francisco Chinatown Merchant Association kicked off here on Saturday. (Xinhua/Liu Yilin)