Question: What's the size of Centerville in 89 Wayne county with an IHSAA class of AA in the year before 1974?
SQL: SELECT "Size" FROM "2-18973139-1" WHERE "Year Joined" < 1974.0 AND "IHSAA Class" = 'AA' AND "# / County" = '89 Wayne' AND "School" = 'Centerville';

Question: What's the year that Hagerstown joined?
SQL: SELECT "Year Joined" FROM "2-18973139-1" WHERE "School" = 'Hagerstown';

Question: What county is Fountain City?
SQL: SELECT "# / County" FROM "2-18973139-1" WHERE "Location" = 'Fountain City';

Question: What's the previous conference of Fountain City with a size more than 287?
SQL: SELECT "Previous Conference" FROM "2-18973139-1" WHERE "Size" > 287.0 AND "Location" = 'Fountain City';