Question: Who was the Class AA winner when Plains was Class A winner and Lubbock was Class AAAAA winner?
Schema: create table table_14603057_2 (class_aa varchar, class_a varchar, class_aaaaa varchar, lubbock varchar, PRIMARY KEY (class_aa))
SQL: select class_aa from table_14603057_2 where class_a = "plains" and class_aaaaa = lubbock