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 were the number of times the venue was located in the united states ?
WP VBD-AUX DT NN IN NNS DT NN VBD-AUX JJ IN DT NNP NNPS .
5
select count ( * ) from w where c3_address = 'united states'