sentences:  The Queen Mother Challenge Cup for championship eights is the regatta's premier event, featuring the first eights of the traditional, 'championship' rowing schools of England.The event attracts approximately 12 entries each year, with smaller schools usually entering the Child Beale Cup for School eights.The Queen Mother forms part of the title known as 'The Triple', which also consists of Championship eights at the Schools' Head of the River Race and The Princess Elizabeth Challenge Cup at Henley Royal Regatta.