title: insert NSDictionary into CoreData
body: <p>I have an NSDictionary and a CoreData Database. I want to insert the NSDictionary into the database.</p>
  
  <ol>
  <li><p>How can I do this (code snippets if possible)?</p></li>
  <li><p>What is the suitable type for the attribute of the dictionary ?</p></li>
  </ol>