Assignment Mountain View Community Hospital consists of a number of different people that contribute to its success. Four main groups of people exist: patients, physicians, employees, and volunteers. Each group has a unique attribute (Define the attribute yourself). A person might not belong to one of those groups. In addition to this, a person may belong to one or more groups at the same time. Employees are further divided into three groups: nurse, staff, and technician. Each employee must be a member of one of the three groups and he cannot belong to one or more groups at the same time. Draw the ERD of Above Scenario. Also, mention the Identifier and other attributes