<http://schema.org/description>
"Matt McGee published An Interview With A Google Search Quality Rater this past Friday, it is the most detailed write up on a quality rater I have seen to date.It goes through the various tasks, how th"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-quality-rater-interview-14618.html>