According the design above can you answer the question named c with boyce codd normal form

Price 8 Id Price M_Department Staff 8 Id Departmentld Staffld Studentld M_Class_Student Id Staff ld Classid Name Surname Studentld Student 9 ld Department Id DepartmentName Name Surname Class Id Salary 8. Id Salary Staffld Classname C. Draw a database schema diagram according to your E-R design. Show that every relation satisfies at least Boyce-Codd normal form