<http://schema.org/headline>
"B\u1EA1n c\u00F3 bi\u1EBFt ki\u1EC3m so\u00E1t c\u00E1c ho\u1EA1t \u0111\u1ED9ng tr\u00EAn facebook"^^<http://www.w3.org/2001/XMLSchema#string>
<https://it60s.org/ban-co-biet-kiem-soat-cac-hoat-dong-tren-facebook.html>