<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/ListItem>
<https://www.scribd.com/doc/90170393/%D8%A7%D8%AC%D8%B9%D9%84-%D8%AD%D9%8A%D8%A7%D8%AA%D9%83-%D8%B3%D8%B9%D9%8A%D8%AF%D8%A9>