Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_50375 ( "Name" text, "Date" text, "Goals" real, "Assists" real, "Team" text, "Venue" text, "Opponent" text, "Competition" text, "Total Gs" real, "Total As" real )

### Question ###
What is the date of the k-league cup, which has less than 28 goals, at the jeonju venue?

### Accurate SQL ###

SELECT "Date" FROM table_50375 WHERE "Venue" = 'jeonju' AND "Goals" < '28' AND "Competition" = 'k-league cup'