<http://schema.org/description>
"As I reported last night at Search Engine Land, Penguin 2.0 / 4 is now live - this is the next generation Penguin update.  As Google's Matt Cutts added, this impacts 2.3% of English queries and also i"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-penguin-four-live-16830.html>