<http://schema.org/description>
"I had no idea, but there is this phenomenon with YouTube videos and the number 301. No, not a 301 redirect but 301 views.  On popular videos, the video count would often hit 301 views and then stop an"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/youtube-301-views-15347.html>