Table schema:
CREATE TABLE table_name_31 (round VARCHAR, number_of_fixtures VARCHAR, main_date VARCHAR)

Question: 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"