CREATE TABLE table_name_31 (round VARCHAR(255), number_of_fixtures VARCHAR(255), main_date VARCHAR(255))
What is the Round when the number of fixtures is more than 2, and the Main date of 7 and 28 november 2007?
    
SQL: SELECT round FROM table_name_31 WHERE number_of_fixtures > 2 AND main_date = "7 and 28 november 2007"