title: What does related_name do?
body: <p>In the Django documentation about <code>related_name</code> it says the following:</p>
  
  <blockquote>
    <p>The name to use for the relation from the related object back to this one. It’s also the default value for <code>related_query_name</code> (the name to use for the reverse filter name from the target model). See the related objects documentation for a full explanation and example. Note that you must set this value when defining relations on abstract models; and when you do so some special syntax is available.</p>
    
    <p>If you’d prefer Django not to create a backwards relation, set related_name to '+' or end it with '+'. </p>
  </blockquote>
  
  <p>I didn't understand it clearly. If somebody would please explain it a bit more, it would help me a lot. </p>