rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
first second
number
number
number
number
number text(text) number number number number
1 russia (rus) 3 1 1 5
how many silver medals did belarus win ?
WRB JJ JJ NNS VBD-AUX NNP VB .
1
select c4_number from w where c2_first = 'belarus'