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_name_81 ( goals_for INTEGER, goal_difference VARCHAR, points VARCHAR, goals_against VARCHAR )

### Question ###
What is the average number of goals with more than 9 points, less than 14 goals against, and a goal difference less than 17?

### Accurate SQL ###

SELECT AVG(goals_for) FROM table_name_81 WHERE points > 9 AND goals_against < 14 AND goal_difference < 17