UNION a ORDER BY ? Opcje

[beel]

Dlaczego nie moge w ten sposob polaczyc zapytan:

SELECT TOP 1 name, type, score, sex FROM student, score, event
WHERE student.student_id=score.student_id AND event.event_id=score.event_id
AND sex='M' AND type='T' ORDER BY score

UNION


SELECT TOP 1 name, type, score, sex FROM student, score, event
WHERE student.student_id=score.student_id AND event.event_id=score.event_id
AND sex='M' AND type='T' ORDER BY score DESC