number-one album in Japan
... that Kazumasa Oda is the oldest artist to have a number-one album in Japan?
... that <a href="./Kazumasa_Oda" id="mwBDs" rel="mw:WikiLink" title="Kazumasa Oda">Kazumasa Oda</a> is the oldest artist to have a <b id="mwBDw"><a class="mw-redirect" href="./List_of_number-one_albums_of_2007_(Japan)" id="mwBD0" rel="mw:WikiLink" title="List of number-one albums of 2007 (Japan)">number-one album in Japan</a></b>?