year tournament surface round winner score
year
tournament
surface
round
winner
score
number
list length list_number list_number1 list_number2
number text text text text <c,score>
1991 basel hard s john mcenroe 6-1, 6-3
what is the total number of carpet surfaces used ?
WP VBD-AUX DT JJ NN IN NN NNS VBN .
13
Keyword Keyword Keyword Keyword Keyword Keyword Keyword Keyword Column Keyword Literal.String
select count ( * ) from w where c3 = 'carpet'
None None Keyword Keyword Keyword Keyword Literal Column None None
['agg', 'agg_count'] ['agg', 'agg_count'] ['agg', 'agg_count'] ['agg', 'agg_count'] c3