<http://schema.org/keywords>
"\u0627\u0644\u062A\u062D\u0627\u0644\u0641 \u0627\u0644\u0639\u0631\u0628\u064A"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffpostarabi.com/2015/10/18/story_n_8325016.html>