stage date route terrain length winner
stage
date
route
terrain
length
winner
number parsed year month day
list length
first second first_number second_number
first second
text date <d, text> text unitnum(unitnum) text(text)
1 22 june rennes - lisieux plain stage 215 km (134 mi) edward sels (bel)
how many different countries won at least one stage in the 1964 tour de france ?
WRB JJ JJ NNS VBD IN JJS CD NN IN DT CD NN IN NNP .
5
select count ( distinct c6_second ) from w