rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 puerto rico 17 27 13 57
how many silver medals did venezuela win ?
WRB JJ JJ NNS VBD-AUX NNP VB .
3
select c4_number from w where c2 = 'venezuela'