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 united states (usa) 25 16 7 48
which three countries are tied for last place ?
WDT CD NNS VBD-AUX VBN IN JJ NN .
Chile|Uruguay|Venezuela
select c2_first from w where c1_number = ( select c1_number from w order by c1_number desc limit 1 )