Fix typo in long description: occurence → occurrence

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 		<dc:description id="description">A magic-induced tempest shipwrecks the king of Naples and his crew on an island inhabited by the usurped duke of Milan.</dc:description>
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-			&lt;p&gt;&lt;i&gt;The Tempest&lt;/i&gt;, thought to be one of the last plays that &lt;a href="https://standardebooks.org/ebooks/william-shakespeare"&gt;Shakespeare&lt;/a&gt; wrote alone, begins with a storm which shipwrecks the king of Naples and his crew. We quickly learn that the tempest was not a natural occurence; it was created by Prospero, the usurped duke of Milan who is stranded on a nearby island, with the help of Ariel, a spirit in his service. The rest of the play explores the relationships between the shipwrecked crew, Prospero, his daughter Miranda, and a native of the island: a half human, half monster called Caliban.&lt;/p&gt;
+			&lt;p&gt;&lt;i&gt;The Tempest&lt;/i&gt;, thought to be one of the last plays that &lt;a href="https://standardebooks.org/ebooks/william-shakespeare"&gt;Shakespeare&lt;/a&gt; wrote alone, begins with a storm which shipwrecks the king of Naples and his crew. We quickly learn that the tempest was not a natural occurrence; it was created by Prospero, the usurped duke of Milan who is stranded on a nearby island, with the help of Ariel, a spirit in his service. The rest of the play explores the relationships between the shipwrecked crew, Prospero, his daughter Miranda, and a native of the island: a half human, half monster called Caliban.&lt;/p&gt;
 			&lt;p&gt;Though this play is traditionally classified as a comedy, more modern scholarship, out of a desire to highlight the dramatic elements of some of Shakespeare’s comedies, created a genre subgroup called the “late romances.” &lt;i&gt;The Tempest&lt;/i&gt; is included in that subgroup.&lt;/p&gt;
 			&lt;p&gt;This Standard Ebooks edition is based on William George Clark and William Aldis Wright’s 1887 Victoria edition, which is taken from the Globe edition.&lt;/p&gt;
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