<http://schema.org/headline>
"\u039A\u03C5\u03BA\u03BB\u03BF\u03C6\u03CC\u03C1\u03B7\u03C3\u03B1\u03BD \u03C4\u03B1 Windows 7  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.otherside.gr/2009/10/kykloforisan-ta-windows-7/>