<http://schema.org/keywords>
"chikan, Nikkan Gendai, Odakyu, Saikyo Line, Seibu, Tokyo, Tokyu, tosatsu, \u75F4\u6F22, \u76D7\u64AE"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.tokyoreporter.com/2013/12/12/tokyos-train-perverts-shift-strategy-as-saikyo-sinks-in-significance/>