rank lane name nationality time notes
rank
lane
name
nationality
time
notes
number
number
number
number number text text number text
1 4 petra chocova czech republic 31.44 q
how many lanes were there ?
WRB JJ NNS VBD-AUX EX .
8
Keyword Keyword Keyword Column Keyword Keyword Keyword
select count ( c2 ) from w
Keyword Keyword Column None None None
['agg', 'agg_count'] ['agg', 'agg_count'] c2