rank heat country cyclists result notes
rank
heat
country
cyclists
result
notes
number
number
list length
number
list length
number number text <n,text> number <c,text>
1 6 great britain chris hoy
jason kenny
jamie staff 42.95 q, wr
name the number of teams in the 6th heat .
VB DT NN IN NNS IN DT JJ NN .
2
select count ( * ) from w where c2_number = 6