Table: swimming_200m_butterfly_2000
Columns: rank
heat
lane
name
nationality
time

Question: What is the top rank with a time of 2:19.86?
SQL: SELECT MAX("rank") FROM swimming_200m_butterfly_2000 WHERE "time" = '2:19.86'

Question: Who had a lane number smaller than 7 and a time of 2:19.86?
SQL: SELECT "name" FROM swimming_200m_butterfly_2000 WHERE "lane" < 7 AND "time" = '2:19.86'

Question: What was Liu Limin's time in heat 4?
SQL: SELECT "time" FROM swimming_200m_butterfly_2000 WHERE "heat" = 4 AND "name" = 'liu limin'