What is the class AAA of the 1993-94 school year with a class AAAAA of Duncanville?
CREATE TABLE "team" (
  "school_year" text,
  "class_a" text,
  "class_aa" text,
  "class_aaa" text,
  "class_aaaa" text,
  "class_aaaaa" text
);
SELECT "class_aaa" FROM "team" WHERE "class_aaaaa"='duncanville' AND "school_year"='1993-94';