pos. div. no. team drivers car laps qual.
pos.
pos .
div .
no .
team
drivers
car
laps
qual . pos .
number
number
number
list length
number
number
rank number number text <n,text> text number number
1 1 11 perkins engineering larry perkins
tomas mezera holden vl commodore ss group a sv 125 2
how many teams are in the top five positions ?
WRB JJ NNS VBD-AUX IN DT JJ CD NNS .
4
select count ( distinct c4 ) from w where c1_number <= 5