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
how many were carpet courts ?
WRB JJ VBD-AUX NN NNS .
13
Keyword Keyword Keyword Keyword Keyword Keyword Keyword Keyword Column Keyword Literal.String
select count ( * ) from w where c3 = 'carpet'
Keyword Keyword None Literal None None
['agg', 'agg_count'] ['agg', 'agg_count']