SELECT n.note, f.kbz FROM noten nINNER JOIN personen p ON p.personen_id = n.personen_id AND (p.vorname = 'Georg'AND p.name = 'Rauch')INNER JOIN studenten s ON s.personen_id = p.personen_idINNER JOIN unterricht u ON u.unterricht_id = n.unterricht_idINNER JOIN faecher f ON f.fach_id = u.fach_idWHERE n.note < (SELECT AVG(n.note) FROM noten nINNER JOIN personen p ON p.personen_id = n.personen_id AND (p.vorname = 'Georg'AND p.name = 'Rauch')INNER JOIN studenten s ON s.personen_id = p.personen_id)