<https://style.nikkei.com/article/DGXMZO25509020Q8A110C1000000?channel=ASH02003&page=2>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://style.nikkei.com/article/DGXMZO25509020Q8A110C1000000?page=2>