<http://schema.org/headline>
"Katy Perry lan\u00E7a novo single para as Olimp\u00EDadas do Rio e pega a internet de supresa"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.brasilpost.com.br/2016/07/15/katy-perry-olimpiadas_n_11013714.html>