<http://schema.org/description>
"Several users use WhatsApp daily for communicating and what if you send a message to a person accidentally? Read on."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gizbot.com/how-to/tips-tricks/how-to-delete-already-sent-undelivered-messages-whatsapp-035100.html>