<https://www.thoibao.com/tt-biden-tuyen-bo-dat-lan-ranh-do-cho-putin/#article>
<http://schema.org/headline>
"TT Biden tuyên bố đặt “lằn ranh đỏ” cho Putin"
<https://www.thoibao.com/tt-biden-tuyen-bo-dat-lan-ranh-do-cho-putin/>