<security-role-assignment>
    <role-name>Administrator</role-name>
    <principal-name>Fred</principal-name>
    <principal-name>system</principal-name>
</security-role-assignment>
<security-role-assignment>
    <role-name>IRS</role-name>
    <principal-name>Tanya</principal-name>
</security-role-assignment>
<security-role-assignment>
    <role-name>Customer</role-name>
    <principal-name>Tanya</principal-name>
    <principal-name>system</principal-name>
</security-role-assignment>
<security-role-assignment>
    <role-name>Teller</role-name>
    <principal-name>Tanya</principal-name>
</security-role-assignment>