what was the last school to join the genesee county b league ?
CREATE TABLE table_203_591 (
    id number,
    "high school" text,
    "join\nyear" text,
    "from" text,
    "left" text,
    "league left to" text
)
SELECT "high school" FROM table_203_591 ORDER BY "join\nyear" DESC LIMIT 1
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 was the last school to join the genesee county b league ? ### Input: CREATE TABLE table_203_591 (
    id number,
    "high school" text,
    "join\nyear" text,
    "from" text,
    "left" text,
    "league left to" text
) ### Response: SELECT "high school" FROM table_203_591 ORDER BY "join\nyear" DESC LIMIT 1