A bowl is worth several dollars. The delicacy of old Beijing is fish soup. According to the legend of Wulin, there was a woman selling fish soup named Song Wusao. Emperor Gaozong ordered her to go aboard and eat her fish soup, which was very appreciated. She remembered her old age and cooked her a famous dish. "A bowl of fish soup is worth a few dollars. If people believe it, they will compete for the market, and they will buy your good ones and buy fresh ones. "