CREATE TABLE table_name_35 (number_of_clubs INTEGER, winners VARCHAR(255), fourth_placed VARCHAR(255))
What is the number of clubs when Dalian Shide won and Sichuan Quanxing won 4th?
    
SQL: SELECT AVG(number_of_clubs) FROM table_name_35 WHERE winners = "dalian shide" AND fourth_placed = "sichuan quanxing"