<http://schema.org/description>
"&lt;p&gt;Moving dirt to suit the needs of construction and development is a challenge as old as civilization.  Moving molecules and microscopic components is a challenge that is years or decades old. &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/columns/what39s-in-a-word(1)>