Draw a single diagram that represents the following relationships in the hospital environment:
A HOSPITAL has on its staff one or more PHYSICIANS
A PHYSICIAN is on the staff of only one HOSPITAL
A PHYSICIAN may admit one or more PATIENTs
A PATIENT is admitted by only one PHYSICIAN
A HOSPITAL has one or more WARDs. Each WARD is located in exactly one HOSPITAL.
A WARD has any number of EMPLOYEEs.
AN EMPLOYEE may work in one or more WARDs.