Oracle 11.2

Trying to figure out how build a XML tree from a table
Been messing around with Oracle's functions and cant seem to figure out how to create a parent/child relationship.

Table

Div Dept Employee
Health 7N John
Health 7N Brian
Health 8N Kurt

Desired XML Format

<Div name="Health">
<Dept name="7N>
<Employee name="John" />
<Employee name="Brian" />
</Dept>
<Dept name="8N>
<Employee name="Kurt" />
</Dept>
</Div>

Thanks,
Chuck