Table: olympic_08_womens_100m
Columns: rank
heat
athlete
country
time

Question: who is the athlete when the time is less than 11.13 and the country is belgium?
SQL: SELECT "athlete" FROM olympic_08_womens_100m WHERE "time" < 11.13 AND "country" = 'belgium'

Question: who is the athlete when the rank is less than 13, time more than 11.13, country is bahamas and the heat more than 2?
SQL: SELECT "athlete" FROM olympic_08_womens_100m WHERE "rank" < 13 AND "time" > 11.13 AND "country" = 'bahamas' AND "heat" > 2

Question: what is the heat when the athlete is anita pistone?
SQL: SELECT SUM("heat") FROM olympic_08_womens_100m WHERE "athlete" = 'anita pistone'

Question: how many times is the rank more than 29, the athlete is barbara pierre and the heat less than 5?
SQL: SELECT COUNT("time") FROM olympic_08_womens_100m WHERE "rank" > 29 AND "athlete" = 'barbara pierre' AND "heat" < 5