What's the nickname of the students of the school that joined the Conference in 2010?
CREATE TABLE table_23221 (
    "Institution" text,
    "Location" text,
    "Nickname" text,
    "Founded" real,
    "Type" text,
    "Enrollment" real,
    "Joined" real,
    "Left" text,
    "Current Conference" text
)
SELECT "Nickname" FROM table_23221 WHERE "Joined" = '2010'
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: What's the nickname of the students of the school that joined the Conference in 2010? ### Input: CREATE TABLE table_23221 (
    "Institution" text,
    "Location" text,
    "Nickname" text,
    "Founded" real,
    "Type" text,
    "Enrollment" real,
    "Joined" real,
    "Left" text,
    "Current Conference" text
) ### Response: SELECT "Nickname" FROM table_23221 WHERE "Joined" = '2010'