CREATE TABLE "membership" (
  "school" text,
  "city" text,
  "team_name" text,
  "enrollment_08_09" real,
  "ihsaa_class" text,
  "ihsaa_class_football" text,
  "county" text,
  "year_joined_or_joining" real,
  "previous_conference" text
);

Question: What year did the team from City of Aurora join?
SQL: SELECT AVG("year_joined_or_joining") FROM "membership" WHERE "city"='aurora';

Question: What was the total enrollment 08-09 of Franklin County?
SQL: SELECT COUNT("enrollment_08_09") FROM "membership" WHERE "school"='franklin county';

Question: What school has a team called the Pirates?
SQL: SELECT "school" FROM "membership" WHERE "team_name"='pirates';