what is the only year to feature a university level team challenge ?
CREATE TABLE table_203_185 (
    id number,
    "season" text,
    "a\ntechnical" text,
    "b\nscientific" text,
    "c\nfine arts" text,
    "d\nimprovisational" text,
    "e\nstructural" text,
    "rising stars!\u00ae" text,
    "po\nprojectoutreach\u00ae" text,
    "university level" text
)
SELECT "season" FROM table_203_185 WHERE NOT "university level" IS NULL
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 is the only year to feature a university level team challenge ? ### Input: CREATE TABLE table_203_185 (
    id number,
    "season" text,
    "a\ntechnical" text,
    "b\nscientific" text,
    "c\nfine arts" text,
    "d\nimprovisational" text,
    "e\nstructural" text,
    "rising stars!\u00ae" text,
    "po\nprojectoutreach\u00ae" text,
    "university level" text
) ### Response: SELECT "season" FROM table_203_185 WHERE NOT "university level" IS NULL