Write and execute XQuery expressions for the following queries on the company.xml document:
ument:
a. Retrieve the names and addresses of employees who work for the "Research" department.
b. For every project located in "Stafford", retrieve the project number, the controlling department number, and the department's manager's last name, address, and birth date.
c. Retrieve the names of all employees who have two or more dependents.
d. Retrieve the names of managers who have at least one dependent.
e. Retrieve the names of employees who work on all projects controlled by department "5".