Table: football_1937_stats
Columns: position
team
points
played
drawn
lost
against
difference

Question: What is the greatest position when the points are less than 21, and the played greater than 14?
SQL: SELECT MAX("position") FROM football_1937_stats WHERE "points" < 21 AND "played" > 14

Question: What is the fewest lost with a difference of 9 and a less than 3 drawn?
SQL: SELECT MIN("lost") FROM football_1937_stats WHERE "difference" = '9' AND "drawn" < 3

Question: Team Estudantes Paulista with a position less than 4 has what average against?
SQL: SELECT AVG("against") FROM football_1937_stats WHERE "team" = 'estudantes paulista' AND "position" < 4