CREATE TABLE table_name_70 (opponent VARCHAR2, week VARCHAR2, date VARCHAR2)

Who is the opponent of the game after week 4 on Sun. Nov. 17?
SELECT opponent FROM table_name_70 WHERE week > 4 AND date = "sun. nov. 17"
SELECT "opponent" FROM "table_name_70" WHERE "date" = "sun. nov. 17" AND "week" > 4