<https://www.paulhypepage.com/guide-faq/singapore-tax-guide-to-foreign-sourced-income/#local-main-place-address>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.paulhypepage.com/guide-faq/singapore-tax-guide-to-foreign-sourced-income/>