<https://baiviet.org/#/schema/person/image/>
<http://schema.org/width>
"146"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://baiviet.org/giai-cau-sgkbt/giai-bai-11-trang-144-sgk-toan-giai-tich-lop-12/>