The town shall be divided into four wards in the manner prescribed
by ordinance and general law.
The council shall consist of eight councilmen, two from each
of the four wards, and the mayor.
Vacancies in any elective office shall be filled for the remainder
of the unexpired term at the next general election occurring not less
than sixty days after the occurrence of the vacancy. The council shall
fill the vacancy temporarily by appointment to serve until the qualification
of the person so elected.