Task: Question Generation
Input (English): Many traditional festivals and customs were observed in the old times, which included climbing the City Wall on January 16, bathing in Qing Xi on March 3, hill hiking on September 9 and others (the dates are in Chinese lunar calendar). Almost none of them, however, are still celebrated by modern Nanjingese.
Output (English): How many of these old festivals are still celebrated by residents of Nanjing?