social schema markup on a figure

social-figure.html

<figure itemid="https://www.pinterest.com/pin/201887995769400347/" itemscope itemtype="http://schema.org/SocialMediaPosting">
<link itemtype="headline" itemref="#headline" />
 <img src="..." itemprop="image" />
  <blockquote cite="https://www.pinterest.com/pin/201887995769400347/">
  <h3 itemprop="headline">Leaked new BMW 2 series (m235i) ahead of oct 25 reveal</h3>
  <p>Date posted: March 4, 2014 <meta itemprop="datePublished" content="2014-03-04" /></p>
  <p>Author:
    <span itemprop="author" itemscope itemtype="http://schema.org/Person">
      <span itemprop="name">
        <a itemprop="url" href="https://www.pinterest.com/ryansammy/">Ryan Sammy</a></span>
    </span>
  </p>
  <figcaption itemprop="sharedContent" itemscope itemtype="http://schema.org/WebPage">
      <footer>
      <p>
        <cite><b itemprop="name"><a itemprop="url citation" href="http://www.reddit.com/r/BMW/comments/1oyh6j/leaked_new_bmw_2_series_m235i_ahead_of_oct_25/">
          Leaked new BMW 2 series (m235i) ahead of oct 25 reveal</a></b></cite>
      </p>
      <p>Author: 
        <span itemprop="author" itemscope itemtype="http://schema.org/Person">
          <a itemprop="url" href="https://www.pinterest.com/ryansammy/" target="_blank"><span itemprop="name">threal135i</span></a>
        </span>
      </p>
      </footer>
  </figcaption>
  </blockquote>
</figure>