<https://hughug-jyutaku.com/#listItem>
<http://schema.org/position>
"1"^^<http://www.w3.org/2001/XMLSchema#integer>
<https://hughug-jyutaku.com/%E3%83%80%E3%82%A6%E3%83%B3%E3%83%AD%E3%83%BC%E3%83%89-15-2>