no. name position date of birth (age) signed from notes
no .
name
position
date of birth -lrb- age -rrb-
signed from
notes
number
first second first_number first_parsed first_year first_month first_day second_number
number text text date(unitnum) text text
1 leonardo burian gk january 21, 1984 (age 30) bella vista first team goalkeeper
what is the total number of `` df '' positions on the list ?
WP VBD-AUX DT JJ NN IN `` NN '' NNS IN DT NN .
17
select count ( * ) from w where c3 = 'df'