What are the years of participation for central crossing school?
CREATE TABLE table_21683 (
    "School" text,
    "Years of Participation" text,
    "OCC Championships" real,
    "Last OCC Championship" text,
    "Last Outright OCC Championship" text
)
SELECT "Years of Participation" FROM table_21683 WHERE "School" = 'Central Crossing'
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 are the years of participation for central crossing school? ### Input: CREATE TABLE table_21683 (
    "School" text,
    "Years of Participation" text,
    "OCC Championships" real,
    "Last OCC Championship" text,
    "Last Outright OCC Championship" text
) ### Response: SELECT "Years of Participation" FROM table_21683 WHERE "School" = 'Central Crossing'