user: ### NOW ANSWER:
Question: What is the date of the K-League Cup, which has less than 28 goals, at the Jeonju venue?
Columns: ['Name', 'Date', 'Goals', 'Assists', 'Team', 'Venue', 'Opponent', 'Competition', 'Total Gs', 'Total As']
Types: ['text', 'text', 'real', 'real', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Choi Sang-Kuk', '1988-11-12', 27.0, 20.0, 'POSCO Atoms', 'Dongdaemun', 'Yukong Elephants', 'K-League', 32.0, 22.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Venue" = 'Jeonju' AND "Goals" < 28.0 AND "Competition" = 'K-League Cup';