pos. time athlete country venue date
pos .
time
athlete
country
venue
date
number
first second first_number second_number
number parsed year month day
number number(number) text text text date
1 12.21 (+0.7) yordanka donkova bulgaria stara zagora 20 august 1988
which country had the most athletic representation ?
WDT NN VBD-AUX DT RBS JJ NN .
United States
select c4 from w group by c4 order by count ( c3 ) desc limit 1