CREATE TABLE table_name_65 (conceded INTEGER, played VARCHAR(255), points VARCHAR(255), position VARCHAR(255))
What is the average number conceded for hte team that had less than 19 points, played more than 18 games and had a position less than 10?
    
SQL: SELECT AVG(conceded) FROM table_name_65 WHERE points < 19 AND position < 10 AND played > 18