The State of New York certifie

The State of New York certifies firefighters throughout

the state and must keep track of all of them,

as well as of the state’s fire departments. Each

fire department has a unique department number, a

name that also identifies its locale (city, county, etc.),

the year it was established, and its main telephone

number. Each certified firefighter has a unique firefighter

number, a name, year of certification, home

telephone number, and a rank (firefighter, fire lieutenant,

fire captain, etc.) The state wants to record the

fire department for which each firefighter currently

works and each firefighter’s supervisor. Supervisors

are always higher-ranking certified firefighters.

Construct a relational database for New York’s fire

departments and firefighters.