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 7 3 0 10
what is the total number of medals for all the countries ranked fourth ?
WP VBD-AUX DT JJ NN IN NNS IN PDT DT NNS VBD JJ .
8
select sum ( c6_number ) from w where c1_number = 4