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<h1>Loose footnotes: heading delimiter</h1>
<p>The first observation is notable.<sup>1</sup></p>
<p>The second finding contradicts it.<sup>2</sup></p>
<p>Both deserve further study.</p>
<h2>Notes</h2>
<p><sup>1</sup> First note with supporting detail.</p>
<p><sup>2</sup> Second note with additional context.</p>
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