ple</span><span class=special>(</span><span class=string>&quot;White&quot;</span><span class=special>));</span>
</pre></blockquote>

<p>
As a notational convenience, when only the first key is specified it is possible
to pass the argument directly without including it into a tuple:
</p>

<blockquote><pre>
<span class=identifier>phonebook</span> <span class=identifier>pb</span><span class=special>;</span>
<span class=special>...</span>
<span class=comment>// look for all Whites</span>
<span class=identifier>