title: What is the attribute property="og:title" inside meta tag?
body: <p>I have this extract of website source code:</p>
  
  <pre><code>&lt;meta content="This is a basic text" property="og:title" /&gt;
  </code></pre>
  
  <p>What does this <strong>property attribute</strong> stand for, and what is its purpose?</p>