number driver entrant chassis engine tyre
number
driver
entrant
chassis
engine
tyre
number
number text text text text text
1 jimmy bryan dean van lines kuzma offenhauser f
how many racers had an offenhauser engine ?
WRB JJ NNS VBD-AUX DT NN NN .
8
select count ( c2 ) from w where c5 = 'offenhauser'