<https://traveleeman.com/tag/%e3%83%97%e3%83%b3%e3%82%bf%e3%82%a2%e3%83%ac%e3%83%bc%e3%83%8a%e3%82%b9/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://traveleeman.com/tag/%E3%83%97%E3%83%B3%E3%82%BF%E3%82%A2%E3%83%AC%E3%83%BC%E3%83%8A%E3%82%B9/>