year chassis engine start finish
year
chassis
engine
start
finish
number
number
number
number text text rank rank
1974 eagle offy 21st 7th
in 1979 how many places did the cosworth engine decrease from start to finish ?
IN CD WRB JJ NNS VBD-AUX DT NNP NN NN IN NN TO VB .
3
select c5_number - c4_number from w where c1_number = 1979 and c3 = 'cosworth'