Formulate Relational Algebra queries:

EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno DEPARTMENT Dname Dnumber Mgr ssn Mgr_start_date DEPT LOCATIONS Dnumber Dlocation PROJECT PnamePnumber PlocationDnum WORKS ON Essn Pno Hours DEPENDENT Essn Dependent_name S Bdate Relationship Query 0 Retrieve the birthdate and address of the employee(s) whose name is John B. Smith Query 1 Retrieve the name and address of all employees who work for the Research department Query For every project located in Stafford, list the project number, the controlling department number, and the department manager's last name, address, and birthdate Query 3 Retrieve the names of each employee who works in all projects controlled by department 5 Query 4 Make a list of all project numbers for projects that involve an employee whose last name is Smith either as a worker or as a manager of the department that controls the project