year competition venue position notes
year
competition
venue
position
notes
number
address
number
number
number text address rank unitnum
1991 world race walking cup san jose, united states 12th 50 km
how many world championships were held previous to the world championships in 2001 ?
WRB JJ NN NNS VBD-AUX VBN JJ TO DT NN NNS IN CD .
5
Keyword Keyword Keyword Keyword Keyword Keyword Keyword Keyword Column Keyword Literal.String Keyword Column Keyword Literal.Number
select count ( * ) from w where c2 = 'world championships' and c1_number < 2001
Keyword Keyword Literal Literal None None Column Column None None None None Literal None
['agg', 'agg_count'] ['agg', 'agg_count'] c1_number c1_number