<https://style.nikkei.com/article/DGXMZO26300050Q8A130C1000000?channel=ASH04002&page=2>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://style.nikkei.com/article/DGXMZO26300050Q8A130C1000000?page=2>