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) 5 0 0 5
the difference between the number of medals of italy and the number of medals of poland
DT NN IN DT NN IN NNS IN NNP CC DT NN IN NNS IN NNP
1
select ( select c6_number from w where c2_first = 'italy' ) - ( select c6_number from w where c2_first = 'poland' )