rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 japan 5 2 0 7
how many countries won more silver medals than japan ?
WRB JJ NNS VBD RBR JJ NNS IN NNP .
2
select count ( c2 ) from w where c4_number > ( select c4_number from w where c2 = 'japan' )