rank name nationality time notes
rank
name
nationality
time
notes
number
number min sec
number text text time text
4 chelsey gotell canada 2:28.15 wr
how many racers from australia competed in the race ?
WRB JJ NNS IN NNP VBD IN DT NN .
2
select count ( c2 ) from w where c3 = 'australia'