ut</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">get_name</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">" is "</span> <span class="special">&lt;&lt;</span> <span class="identifier">e</span><span class="special">.</span><span class="identifier">get_age</span><span class="special">()</span> <span class="special">&lt;&lt;</span> <span class="string">" years old"</span> <span