Table: swimming_2008_women_butterfly
Columns: rank
lane
name
nationality
time

Question: What rank was the swimmer in lane 4?
SQL: SELECT "rank" FROM swimming_2008_women_butterfly WHERE "lane" = 4

Question: What is the highest lane for the poland swimmer who ranked under 6?
SQL: SELECT MAX("lane") FROM swimming_2008_women_butterfly WHERE "rank" < 6 AND "nationality" = 'poland'