A</span><span class="special">,</span> <span class="identifier">b</span><span class="special">:</span> <span class="identifier">B</span><span class="special">,</span> <span class="special">...</span> <span class="special">--&gt;</span> <span class="identifier">composite</span><span class="special">-</span><span class="identifier">expression</span><span class="special">:</span> <span class="identifier">composite</span><span class="special">-</span><span class="identifier">attribute</span>
</pre>
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