sport gold silver bronze total
sport
gold
silver
bronze
total
number
number
number
number
text number number number number
athletics 14 8 10 32
what are the number of silver medals boxing has ?
WP VBD-AUX DT NN IN NN NNS NNP VBD-AUX .
1
select c3_number from w where c1 = 'boxing'