<https://www.adweek.com/media/messenger-from-facebook-messenger-kids-roll-out-black-history-month-sticker-pack/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.adweek.com/media/messenger-from-facebook-messenger-kids-roll-out-black-history-month-sticker-pack/>