user: Question: When was the film released that a less than 5038 production number and was of the character Bosko?
Columns: ['Title', 'Series', 'Characters', 'Production Num.', 'Release date']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Big Man from the North', 'LT', 'Bosko, Honey', 4500.0, '1931-01-XX']
SQL:

assistant: SELECT "Release date" FROM "Table" WHERE "Production Num." < 5038.0 AND "Characters" = 'Bosko';