microdata - 有没有办法为具有汇总评级的单个评论格式化微数据？

Question

我一生都无法弄清楚如何为具有单个评论但具有多个评级的页面构建微数据，以便谷歌能够正确解释它。

这是一些示例标记，这似乎是合法的，但谷歌忽略了评级部分：

    <div itemscope itemtype="http://data-vocabulary.org/Product">
  <span itemprop="name">Executive
    Anvil</span>
<span itemprop="review" itemscope itemtype="http://data-vocabulary.org/Review-aggregate"><span itemprop="rating">4.4</span> stars, based on <span itemprop="count">89 </span> votes</span>
 <div itemscope itemtype="http://data-vocabulary.org/Review">
<span itemprop="itemreviewed">Executive
    Anvil</span>
    Reviewed by <span itemprop="reviewer">Ulysses Grant</span> on
    <time itemprop="dtreviewed" datetime="2009-01-06">Jan 6</time>.
    <span itemprop="summary">Delicious, tasty pizza in Eastlake!</span>
    <span itemprop="description">L'Amourita serves up traditional wood-fired Neapolitan-style pizza, 
      brought to your table promptly and without fuss. An ideal neighborhood pizza joint.</span>
  </div>
</div>

Answer 1

Never mind! It turns out I should be using schema.org.