Table: olympic_hurdles_2
Columns: rank
lane
athlete
nationality
time
notes

Question: What is the lowest time for Paulo Villar in lane 9?
SQL: SELECT MIN("time") FROM olympic_hurdles_2 WHERE "athlete" = 'paulo villar' AND "lane" < 9

Question: What is the nationality of lane 4?
SQL: SELECT "nationality" FROM olympic_hurdles_2 WHERE "lane" = 4

Question: What is the nationality with a 13.21 time?
SQL: SELECT "nationality" FROM olympic_hurdles_2 WHERE "time" = 13.21