from to name party position
from
to
name
party
position
number
number
number number text text text
1850 1862 m. borgarelli d'ison se colonel of infantry e.r
how many different mayors served between 1970 and 2010 ?
WRB JJ JJ NNS VBD IN CD CC CD .
3
select count ( distinct c3 ) from w where c2_number >= 1970 and c1_number <= 2010