<http://schema.org/keywords>
"\u063A\u0644\u0627\u0621 \u0627\u0644\u0623\u0633\u0639\u0627\u0631"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffpostarabi.com/2016/03/09/story_n_9411446.html>