rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 south korea 9 2 1 12
what is the difference between the total number of bronze medals won by the united states and west germany ?
WP VBD-AUX DT NN IN DT JJ NN IN NN NNS VBN IN DT NNP NNPS CC NNP NNP .
4
select ( select c5_number from w where c2 = 'united states' ) - ( select c5_number from w where c2 = 'west germany' )