Which ISHAA school joined in 2012 and has a mascot of the panthers?
CREATE TABLE table_14229 (
    "School" text,
    "Location" text,
    "Mascot" text,
    "Enrollment 12-13" real,
    "IHSAA Class" text,
    "IHSAA Class Football" text,
    "County" text,
    "Year Joined" real,
    "Previous Conference" text
)
SELECT "IHSAA Class" FROM table_14229 WHERE "Year Joined" < '2012' AND "Mascot" = 'panthers'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which ISHAA school joined in 2012 and has a mascot of the panthers? ### Input: CREATE TABLE table_14229 (
    "School" text,
    "Location" text,
    "Mascot" text,
    "Enrollment 12-13" real,
    "IHSAA Class" text,
    "IHSAA Class Football" text,
    "County" text,
    "Year Joined" real,
    "Previous Conference" text
) ### Response: SELECT "IHSAA Class" FROM table_14229 WHERE "Year Joined" < '2012' AND "Mascot" = 'panthers'