x1 = Fru
x2 = Glc
x3 = HexP
x4 = Suc6P
x5 = Suc
x6 = Sucvac
x7 = glycolysis
x8 = phos
x9 = UDP
x10 = ADP
x11 = ATP
x12 = Glcex
x13 = Fruex