<http://schema.org/about>
"Think your friend won't be interested in &lt;i&gt;Food, Inc.&lt;/i&gt; because he's not familiar with the subject matter? Think again."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/healthy-eating/blogs/food-inc-take-someone-who-doesnt-know>