season tier division place
season
tier
division
place
minimum_number minimum_parsed minimum_year maximum_number maximum_parsed maximum_year
number
number
timespan number text rank
1970-01 6 regional 11th
what is the total number of divisions on the chart ?
WP VBD-AUX DT JJ NN IN NNS IN DT NN .
4
select count ( distinct c3 ) from w