Additionally, in Buddhism, '九品' is read 'kuhon', which does not contain dull sounds, but '上品・下品'is read 'jobon, gebon', both of which contains them.
なお仏教の「九品」の場合は「くほん」と濁らずに読むが、「上品・下品」などは「じょうぼん・げぼん」と連濁する。