<http://schema.org/description>
"It has been a long time since Google unleashed Panda  on webmasters, a year and a half long.There were recoveries but were they full recoveries?  One of the best examples and most vocal examples of a "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/full-panda-recovery-15700.html>