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		<updated>2026-05-20T07:28:24Z</updated>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1090:_Formal_Languages&amp;diff=1932</id>
		<title>1090: Formal Languages</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1090:_Formal_Languages&amp;diff=1932"/>
				<updated>2012-08-03T06:22:31Z</updated>
		
		<summary type="html">&lt;p&gt;Xamnidar: added explanation: context-free grammar&lt;/p&gt;
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&lt;div&gt;{{ComicHeader|1090|August 2, 2012}}&lt;br /&gt;
&lt;br /&gt;
[[File:Formal_languages.png|[audience looks around] &amp;amp;#39;What just happened?&amp;amp;#39; &amp;amp;#39;There must be some context we&amp;amp;#39;re missing.&amp;amp;#39;]]&lt;br /&gt;
&lt;br /&gt;
== Image Text ==&lt;br /&gt;
[audience looks around] &amp;amp;#39;What just happened?&amp;amp;#39; &amp;amp;#39;There must be some context we&amp;amp;#39;re missing.&amp;amp;#39;&lt;br /&gt;
&lt;br /&gt;
== Description ==&lt;br /&gt;
[[Megan]] is standing at the podium of the 10th Annual Symposium on Formal Languages (as per the banner behind her).  [[Cueball]] crashes in through a glass pane and shouts &amp;quot;GRAMMAR!&amp;quot; and dashes off.  Megan remains at the podium looking perplexed.&lt;br /&gt;
&lt;br /&gt;
This is a reference to the phrase [http://en.wikipedia.org/wiki/Context-free_grammar context-free grammar], which is a technical term used in formal language theory.&lt;/div&gt;</summary>
		<author><name>Xamnidar</name></author>	</entry>

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