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_35521 ( "Position" real, "Team" text, "Played" real, "Wins" real, "Draws" real, "Losses" real, "Scored" real, "Conceded" real, "Points" real )

### Question ###
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?

### Accurate SQL ###

SELECT AVG("Conceded") FROM table_35521 WHERE "Points" < '19' AND "Position" < '10' AND "Played" > '18'