title: How to initialize a NSMutableDictionary of a NSArray of NSStrings from a .plist file?
body: <p>For example, the dictionary of array of strings, for <code>who likes what</code>:</p>
  
  <pre><code>@"John"  -&gt; [@"Books", @"TV", @"Poker", nil] 
  @"Peter" -&gt; [@"Programming", @"Simsons", nil] 
  @"Tim"   -&gt; [@"Travel", @"Photography", nil] 
  </code></pre>
  
  <p>How can I initialize the <code>NSMutableDictionary</code> for above, say, the data is from a <code>.plist</code>? Thanks!</p>