Do some queries(at least six) for this design and write a detailed and accurate description of business rules for this ERD design.

Thank you.

Leave Entitlement Leave PK StaffID * PK Staff Year StartDate Attendance Entitlement EndDate PK StaffID Remarks Leave Type Timeln FK Leave TypeID DA PK Leave TypeID TimeOut Leave Type Remarks Table PK,FK1 StaffID PK StaffID StaffName CreditHours BirthDate Publications Gender Address Email Department Faculty FK2 DepartmentID + PK DepartmentID PK FacultyID Job Grade FK3 JobGradel DepartmentName FacultyID PK JobGradeID FK FacultyID JobGrade Title Salary PK StaffID Dependent AnnualIncome PK StaffID Tax DependentName Loan DependentBirthDate Insurance DependentGender DependentRelationship