rank lane name nationality time notes
rank
lane
name
nationality
time
notes
number
number
number min sec
number number text text time text
4 4 sophie pascoe new zealand 2:25.65 wr
how many swimmers from china participated in the race ?
WRB JJ NNS IN NNP VBD IN DT NN .
1
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Literal.String
select count ( c3 ) from w where c4 = 'china'
Keyword Keyword Column Column Literal None None None None None
['agg', 'agg_count'] ['agg', 'agg_count'] c3 c4