title: Schema.org memberOf error
body: <p>This problem's driving me crazy second day in a row. So, the problem:
  I'm trying to use "memberOf" property for "organization", and google structured data tool say that there is error:</p>
  
  <blockquote>
    <p>Error: Page contains property "memberOf" which is not part of the schema.</p>
  </blockquote>
  
  <p>At the same time schema.org says, that this is a property of "organization":</p>
  
  <p><a href="http://schema.org/memberOf" rel="nofollow">http://schema.org/memberOf</a></p>
  
  <p>If I change "organization" to "programMembership", no more errors, all good. The problem is that I need to use organization.</p>
  
  <p>The code I'm trying to run on Google tester:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;div itemscope itemtype="http://schema.org/Organization"&gt;
    &lt;div itemprop="name"&gt;
      NAME 
        &lt;div itemprop="memberOf" itemscope itemtype="http://schema.org/Organization"&gt;
           &lt;div itemprop="name"&gt;
             NAME2
           &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>