=special>&gt;&gt;,</span>
    <span class=identifier>ordered_non_unique</span><span class=special>&lt;</span><span class=identifier><b>key</b></span><span class=special><b>&lt;&amp;</b></span><span class=identifier><b>employee</b></span><span class=special><b>::</b></span><span class=identifier><b>name</b></span><span class=special><b>&gt;</b>&gt;,</span>
    <span class=identifier>ordered_non_unique</span><span class=special>&lt;</span><span class=identifier><b>key</b></span><span class=special><b>&lt;&amp