<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/ListItem>
<https://ar.scribd.com/document/22871539/%D9%85%D9%87%D8%A7%D8%B1%D8%A7%D8%AA-%D8%A7%D9%84%D9%84%D8%BA%D8%A9-%D8%A7%D9%84%D8%B9%D8%B1%D8%A8%D9%8A%D8%A9>