<http://schema.org/ratingValue>
"5.0E0"^^<http://www.w3.org/2001/XMLSchema#double>
<https://vi.scribd.com/doc/24182096/VAI-TRO-C%E1%BB%A6A-H%E1%BB%92-CHI-MINH-TRONG-VI%E1%BB%86C-THANH-L%E1%BA%ACP-%C4%90%E1%BA%A2NG-CSVN>