#data
<!-- From RFC 4685 -->
   <feed xmlns="http://www.w3.org/2005/Atom"
         xmlns:thr="http://purl.org/syndication/thread/1.0">
     <id>http://www.example.org/myfeed</id>
     <title>My Example Feed</title>
     <updated>2005-07-28T12:00:00Z</updated>
     <link href="http://www.example.org/myfeed" />
     <author><name>James</name></author>
     <entry>
       <id>tag:example.org,2005:1</id>
       <title>My original entry</title>
       <updated>2006-03-01T12:12:12Z</updated>
       <link
         type="application/xhtml+xml"
         href="http://www.example.org/entries/1" />
       <summary>This is my original entry</summary>
     </entry>
     <entry>
       <id>tag:example.org,2005:1,1</id>
       <title>A response to the original</title>
       <updated>2006-03-01T12:12:12Z</updated>
       <link href="http://www.example.org/entries/1/1" />
       <thr:in-reply-to
         ref="tag:example.org,2005:1"
         type="application/xhtml+xml"
         href="http://www.example.org/entries/1"/>
       <summary>This is a response to the original entry</summary>
     </entry>
   </feed>
#errors
/feed;element missing:atom|link|self;s

#data
<!-- From RFC 4685 -->
   <feed xmlns="http://www.w3.org/2005/Atom"
         xmlns:thr="http://purl.org/syndication/thread/1.0">
     <id>http://www.example.org/myfeed</id>
     <title>My Example Feed</title>
     <updated>2005-07-28T12:00:00Z</updated>
     <link href="http://www.example.org/myfeed" />
     <author><name>James</name></author>
     <entry>
       <id>tag:example.org,2005:1,1</id>
       <title>A response to the original</title>
       <updated>2006-03-01T12:12:12Z</updated>
       <link href="http://www.example.org/entries/1/1" />
       <thr:in-reply-to
         ref="tag:example.org,2005:1,0"
         type="application/xhtml+xml"
         href="http://www.example.org/entries/1"
         source="http://www.example.org/myfeed" />
       <link
         rel="related"
         type="application/xhtml+xml"
         href="http://www.example.org/entries/1" />
       <summary>This is a response to the original entry</summary>
     </entry>
   </feed>
#errors
/feed;element missing:atom|link|self;s