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
what are the total number of athletes representing bulgaria ?
WP VBD-AUX DT JJ NN IN NNS VBG NNP .
2
select count ( c3 ) from w where c4 = 'bulgaria'