Table: football_1923_stats
Columns: position
team
points
played
drawn
lost
against
difference

Question: What's the highest against score that drew more than 5, and had more than 18 points?
SQL: SELECT MAX("against") FROM football_1923_stats WHERE "drawn" > 5 AND "points" > 18

Question: What's the number of losses where played was less than 17?
SQL: SELECT COUNT("lost") FROM football_1923_stats WHERE "played" < 17

Question: What is team ypiranga-sp's average position when they lost by less than 7?
SQL: SELECT AVG("position") FROM football_1923_stats WHERE "team" = 'ypiranga-sp' AND "lost" < 7