rank swimmer country time note
rank
swimmer
country
time
note
number
number min sec
number text text time text
1 claudia poll costa rica 1:00.45 q
how many swimmers had a time of at least 1:00
WRB JJ NNS VBD-AUX DT NN IN IN JJS CD
9
select count ( c2 ) from w where c4_min <= 1