rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 brazil 13 18 12 43
what was the difference between the gold medal count of brazil and argentina ?
WP VBD-AUX DT NN IN DT NN NN NN IN NNP CC NNP .
6
select ( select c3_number from w where c2 = 'brazil' ) - ( select c3_number from w where c2 = 'argentina' )