<https://www.sederhana.co.id/#/schema/person/279d93b0cce1e36a7a058d7c495a90c9>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.sederhana.co.id/cara-menghitung-angka-indeks-paling-sederhana/>