Table: swimming_2000_men_100m_4
Columns: rank
lane
name
nationality
time

Question: What is the highest rank of a swimmer in lane 5?
SQL: SELECT MAX("rank") FROM swimming_2000_men_100m_4 WHERE "lane" = 5

Question: What is the lowest rank of Jens Kruppa in a lane larger than 2?
SQL: SELECT MIN("rank") FROM swimming_2000_men_100m_4 WHERE "name" = 'jens kruppa' AND "lane" > 2

Question: Which nationality has a lane of 6 and a rank smaller than 6?
SQL: SELECT "nationality" FROM swimming_2000_men_100m_4 WHERE "rank" < 6 AND "lane" = 6