year competition venue position notes
year
competition
venue
position
notes
number
address
first second first_number
number text address rank(text) text
2006 iaaf world athletics final stuttgart, germany 4th (semis) 110 m hurdles
what were the number of competitions that had a position of first ?
WP VBD-AUX DT NN IN NNS WDT VBD-AUX DT NN IN JJ .
4
select count ( c2 ) from w where c4_first_number = 1