+4 = 9

ㄍㄨㄟˇguǐ

ㄍㄨㄟˇguǐ
tenth of the ten Heavenly Stems 十天干[shi2 tian1 gan1], tenth in order, letter "J" or Roman "X" in list "A, B, C", or "I, II, III" etc, ancient Chinese compass point: 15°, deca
Decyl, Decylgruppe (S, Chem)​, der zehnte der zehn "Himmelsstämme" des chinesischen Kalenders (S)​, Gui (Eig, Fam)​, alter chinesischer Kompasspunkt: 15° (S)​
car. cycl.