<http://schema.org/ratingValue>
"5.0E0"^^<http://www.w3.org/2001/XMLSchema#double>
<https://vi.scribd.com/document/109672658/%C4%90%E1%BA%B7c-%C4%91i%E1%BB%83m-khoang-v%E1%BA%ADt-bao-cao-c%E1%BB%A7a-viet-nam>