no. name term of office president(s) served under
no .
name
term of office
president -lrb- s -rrb- served under
number
minimum_number minimum_parsed minimum_day minimum_month minimum_year maximum_number maximum_parsed maximum_day maximum_month maximum_year
number text timespan text
1 william bennett march 28, 1991 - january 20, 1993 george h. w. bush
how many directors served more than 3 years ?
WRB JJ NNS VBD JJR IN CD NNS .
3
select count ( c2 ) from w where c3_maximum_year - c3_minimum_year > 3