<https://style.nikkei.com/article/DGXZQOLM315HD0R30C22A1000000?channel=ASH05042&k=201605270540&page=2>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://style.nikkei.com/article/DGXZQOLM315HD0R30C22A1000000?channel=ASH05042&k=201605270540&page=2>