<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/AggregateRating>
<https://ar.scribd.com/document/33004080/%D8%B9%D9%84%D9%8A-%D8%A8%D9%86-%D8%A3%D8%A8%D9%8A-%D8%B7%D8%A7%D9%84%D8%A8>