<http://schema.org/keywords>
"\u062A\u0646\u0638\u064A\u0645 \u0627\u0644\u062F\u0648\u0644\u0629 \u0627\u0644\u0625\u0633\u0644\u0627\u0645\u064A\u0629"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffpostarabi.com/2015/10/09/story_n_8267716.html>