If class a is canadian and class aaa is wimberley, which possible school years could this fall on? 
CREATE TABLE "individual_overall" (
  "school_year" text,
  "class_a" text,
  "class_aa" text,
  "class_aaa" text,
  "class_aaaa" text,
  "class_aaaaa" text
);
SELECT "school_year" FROM "individual_overall" WHERE "class_aaa"='Wimberley' AND "class_a"='Canadian';