Identify whether each of the items on the right should be an attribute of that entity or a separate entity. In the case of a separate entity, explain why.

Employee	Name, Date Hired, Manager, Spouse, Job
Factory	Manager, Address, Supplier, Machine, Size
Boat	Dock, Length, Passenger, Captain, Weight
Dentist	Patient, Graduate School, Emergency Phone, Drill
Library	Book, Librarian, Number of Books, Visitor