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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The short answer is: because ISO 639-3 says so (or, rather, fails to say so).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In addition, “German” is not considered a macrolanguage, according to ISO 639, nor is ‘swg’ considered to be enclosed by it. BCP 47 does not indicate nor attempt
to indicate all possible relationships between languages. Clearly, on some level, more “macrolanguage relationships” could be defined. But these generally do not convey additional utility for the uses to which language tags are mostly applied and the additional
complexity of macrolanguages is something that generally this group tries to avoid.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Addison<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Addison Phillips<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Globalization Architect (Lab126)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chair (W3C I18N WG)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Internationalization is not a feature.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It is an architecture.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ietf-languages-bounces@alvestrand.no [mailto:ietf-languages-bounces@alvestrand.no]
<b>On Behalf Of </b>Benson Limketkai<br>
<b>Sent:</b> Thursday, March 07, 2013 3:47 PM<br>
<b>To:</b> ietf-languages@alvestrand.no<br>
<b>Subject:</b> BCP 47<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Hi,<br>
<br>
Why doesn't Swabian have German as a macrolanguage?<br>
<br>
</span><o:p></o:p></p>
<pre><span style="font-family:"Arial","sans-serif";color:#222222">See: </span><span style="color:black"><a href="http://en.wikipedia.org/wiki/Swabian_German" target="_blank"><span style="font-family:"Arial","sans-serif"">http://en.wikipedia.org/wiki/Swabian_German</span></a><o:p></o:p></span></pre>
<pre style="word-wrap:break-word;white-space:pre-wrap"><span style="color:black">%%<o:p></o:p></span></pre>
<pre><span style="color:black">Type: language<o:p></o:p></span></pre>
<pre><span style="color:black">Subtag: swg<o:p></o:p></span></pre>
<pre><span style="color:black">Description: Swabian<o:p></o:p></span></pre>
<pre><span style="color:black">Added: 2009-07-29<o:p></o:p></span></pre>
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