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Specify and execute the following queries in relational algebra (RA) using the RA interpreter on the COMPANY database schema in Figure 3.

Specify and execute the following queries in relational algebra (RA) using
the RA interpreter on the COMPANY database schema in Figure 3.5.
a. List the names of all employees in department 5 who work more than 10
hours per week on the ProductX project.
b. List the names of all employees who have a dependent with the same first
name as themselves.
c. List the names of employees who are directly supervised by Franklin
Wong.
d. List the names of employees who work on every project.
e. List the names of employees who do not work on any project.
f. List the names and addresses of employees who work on at least one project
located in Houston but whose department has no location in
Houston.
g. List the names of department managers who have no dependents.

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