<http://schema.org/keywords>
"\u30AD\u30E3\u30B9\u30BF\u30FC\u30FB\u30BB\u30E1\u30F3\u30E4"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.huffingtonpost.jp/silvia-camporesi/caster-semenya_b_11635928.html>