CREATE TABLE table_name_35 (series VARCHAR, opponent VARCHAR, round VARCHAR, competition VARCHAR, season VARCHAR)

What is the Series for the uefa cup, in the 2006 07 season, and a Round of group, and an opponent of az?
SELECT series FROM table_name_35 WHERE competition = "uefa cup" AND season = "2006–07" AND round = "group" AND opponent = "az"
SELECT "series" FROM "table_name_35" WHERE "2006–07" = "season" AND "az" = "opponent" AND "competition" = "uefa cup" AND "group" = "round"