In this new variant, we have made three changes:

 * We've renamed itemscope="" to item="".

 * We've made it so you can give the type of a list of name-value
   pairs, by giving a value to item="".

 * We've made it so you no longer declare a relationship from the page
   to the list, since the type is enough to declare that.

So instead of:

   <div itemprop="http://example.com/fruit" itemscope>
    <link itemprop="itemid" href="http://example.com/fruits/apple">
    <div itemprop="tree" itemscope>
     <span itemprop="country">USA</span>
    </div>
   </div>

You now have:

   <div item="http://example.com/fruit">
    <link itemprop="itemid" href="http://example.com/fruits/apple">
    <div itemprop="tree" item="http://example.com/tree">
     <span itemprop="country">USA</span>
    </div>
   </div>