Grouping By Starting Value (Results)

<div>
   <h1>Introduction</h1>
   <p>XSLT is used to write stylesheets.</p>
   <p>XQuery is used to query XML databases.</p>
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<div>
   <h1>What is a stylesheet?</h1>
   <p>A stylesheet is an XML document used to define a transformation.</p>
   <p>Stylesheets may be written in XSLT.</p>
   <p>XSLT 2.0 introduces new grouping constructs.</p>
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