<http://schema.org/headline>
"\u03A4\u03BF \u03C0\u03C1\u03CC\u03B3\u03C1\u03B1\u03BC\u03BC\u03B1 \u03C4\u03BF\u03C5 Rockwave Festival"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newpost.gr/entertainment/129206/to-programma-toy-Rockwave-Festival>