title: Nested JSON NSJSONseralization
body: <p>I am struggling with the following problem:</p>
  
  <p>I've got an API which returns a nested JSON piece.
  (I use NSJSONSeralization to parse it)</p>
  
  <p>eg:</p>
  
  <pre><code> { "thing" = 1,
     "Other thing" = 2,
     "ParentFromList": [{
     "IT" = 3,
     "SecondIT" = 4
   }
  </code></pre>
  
  <p>How can I use IT and Second it?</p>
  
  <p>I've tried: </p>
  
  <pre><code>  NSDictionary *thingy = [[jsonOutput objectForKey:@"ParentFromList"] ObjectForKey:@"IT"];
  </code></pre>
  
  <p>JsonOutput is also a nsdictionary.
  But after running it, it fails with:</p>
  
  <pre><code>  Unrecognized Selector send to instance.
  </code></pre>
  
  <p>I don't know how to fix this, help appreciated.</p>