<https://blog.limkitsiang.com/2007/05/10/most-shameful-mother%e2%80%99s-day-in-nation%e2%80%99s-history/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://blog.limkitsiang.com/2007/05/10/most-shameful-mother%E2%80%99s-day-in-nation%E2%80%99s-history/>