<http://schema.org/description>
"The Google Penguin algorithm has been taunting SEOs for a long time now, but did you know there are different degrees of Penguin?It is not that you are hit by the Penguin algorithm or not.  You can be"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/mild-case-of-google-penguin-18374.html>