CREATE TABLE table_name_21 (goals_against INTEGER, position VARCHAR(255), points VARCHAR(255), club VARCHAR(255))
What is the highest Goals Against, when Points is greater than 25, when Club is "SD Indautxu", and when Position is greater than 3?
    
SQL: SELECT MAX(goals_against) FROM table_name_21 WHERE points > 25 AND club = "sd indautxu" AND position > 3