year tournament venue result extra
year
tournament
venue
result
extra
number
address
number
number
number text address rank unitnum
2002 european indoor championships vienna, austria 5th 2.04 pbi
how many summer olympics has yelena slesarenko participated in ?
WRB JJ NNPS NNPS VBD-AUX NNP NNP VBD IN .
2
select count ( * ) from w where c2 = 'summer olympics'