year competition venue position event notes
year
competition
venue
position
event
notes
number
address
number
number hour min sec
number text address rank text time
1982 african championships cairo, egypt 1st marathon 2:21:05
what are the total number of times the position of 1st place was earned ?
WP VBD-AUX DT JJ NN IN NNS DT NN IN CD NN VBD-AUX VBN .
8
select count ( * ) from w where c4_number = 1