rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 russia 3 0 2 5
how many countries earned at lest one bronze medal ?
WRB JJ NNS VBN IN IN CD NN NN .
3
select count ( c2 ) from w where c5_number >= 1