rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 china 41 27 13 81
how many more more bronze medals did russia earn than china ?
WRB JJ JJR RBR JJ NNS VBD-AUX NNP VB IN NNP .
21
Keyword Keyword Keyword Column Keyword Keyword Keyword Column Keyword Literal.String Keyword Keyword Keyword Keyword Column Keyword Keyword Keyword Column Keyword Literal.String Keyword
select ( select c5_number from w where c2 = 'russia' ) - ( select c5_number from w where c2 = 'china' )
Keyword Keyword Keyword Keyword Column None None Literal None Keyword Literal None
['diff', ''] ['diff', ''] ['diff', ''] ['diff', ''] c5_number ['diff', '']