rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 united states 8 7 1 16
who has had only 7 gold medals ?
WP VBD-AUX VBD-AUX RB CD NN NNS .
Russia
select c2 from w where c3_number = 7