_:n51a12ec0cf54449a99ac4823c2aad897xb2
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ja.m.wikipedia.org/wiki/%E3%82%B7%E3%83%B3%E3%82%AC%E3%83%BC%E3%82%BA%E3%83%BB%E3%82%B9%E3%83%AA%E3%83%BC>