nbsp;&nbsp;&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(unit&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Pretty</span>.doc)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a&nbsp;list&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Pretty</span>.doc<br>
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