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<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://roukenhome-ann.com/2024/10/02/%E8%80%81%E7%8A%AC%E3%83%9B%E3%83%BC%E3%83%A0%E3%81%82%E3%82%93%EF%BD%9C%E7%8A%AC%E3%81%AE%E3%81%8A%E3%81%97%E3%82%83%E3%82%8C/img_5194-9/>