<http://schema.org/headline>
"Th\u00F4ng tin H\u00E0 N\u1ED9i l\u00E0 th\u00E0nh ph\u1ED1 \u00F4 nhi\u1EC5m kh\u00F4ng kh\u00ED th\u1EE9 nh\u00EC th\u1EBF gi\u1EDBi l\u00E0 thi\u1EBFu c\u01A1 s\u1EDF khoa h\u1ECDc"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/thong-tin-ha-noi-la-thanh-pho-o-nhiem-khong-khi-thu-nhi-the-gioi-la-thieu-co-so-khoa-hoc/c/20496723.epi>