pos rider manufacturer time/retired points
pos
rider
manufacturer
time\\/retired
points
number
number min sec
number
rank text text time number
1 tohru ukawa honda 49:50.449 25
how many riders scored no points at all ?
WRB JJ NNS VBD DT NNS IN DT .
16
select count ( c2 ) from w where c5_number is null