rank nation gold silver bronze total
rank
nation
gold
silver
bronze
total
number
number
number
number
number
number text number number number number
1 russia 8 12 10 30
poland and south africa combined for how many total medals ?
NNP CC NNP NNP VBN IN WRB JJ JJ NNS .
14
select sum ( c6_number ) from w where c2 in ( 'poland' , 'south africa' )