<https://au.pcmag.com/social-networking-1/8843/facebook-buys-whatsapp-in-16b-deal>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://au.pcmag.com/social-networking-1/8843/facebook-buys-whatsapp-in-16b-deal>