Autumn
... that Australian pop band Autumn was one of four artists co-credited with a number-one hit in the Australian charts on 31 October 1970, each with a version of the song "Yellow River"?
... that Australian pop band <b id="mwAbw"><a href="./Autumn_(Australian_band)" id="mwAb0" rel="mw:WikiLink" title="Autumn (Australian band)">Autumn</a></b> was one of four artists co-credited with a number-one hit in the Australian charts on 31<span id="mwAb4" typeof="mw:Entity"> </span>October<span id="mwAb8" typeof="mw:Entity"> </span>1970, each with a version of the song "<a href="./Yellow_River_(song)" id="mwAcA" rel="mw:WikiLink" title="Yellow River (song)">Yellow River</a>"?