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 gold medals did the top 3 nations earn altogether ?
WRB JJ JJ NNS VBD-AUX DT JJ CD NNS VBP RB .
93
select sum ( c3_number ) from w where c1_number <= 3