ELResolver</code> determines what object <code>employee</code> refers to, and what it means to get the
 <code>lastName</code> property on that object.

 <p>
 Most methods in this class accept a <code>base</code> and <code>property</code> parameter. In the case of variable
 resolution (e.g. determining what <code>employee</code> refers to in <code>${employee.lastName}</code>), the
 <code>base</code> parameter will be <code>null</code> and the <code>property</code> parameter will always be of type
 <code>Stri