rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 canada 9 6 5 20
how many silver medals were won by italy ?
WRB JJ JJ NNS VBD-AUX VBN IN NNP .
7
select c4 from w where c2 = 'italy'