pos country gold silver bronze total
pos
country :
gold :
silver :
bronze :
total :
number
first second
number
number
number
number
number text(text) number number number number
1 italy (ita) 3 3 1 7
how many more silvers did italy win compared to the united states ?
WRB JJ JJR NNP VBD-AUX NNP VB VBN TO DT NNP NNPS .
3
select ( select c4_number from w where c2_first = 'italy' ) - ( select c4_number from w where c2_first = 'united states' )