x1 = P
x2 = G6P
x3 = F6P
x4 = F16P
x5 = NADH
x6 = NAD
x7 = BPG
x8 = P3G
x9 = P2G
x10 = PEP
x11 = PYR
x12 = ACE
x13 = CO2
x14 = ETOH
x15 = SUCC
x16 = X
x17 = GA3P
x18 = DHAP
x19 = GLY
x20 = D6PGluconoLactone
x21 = D6PGluconate
x22 = NADP
x23 = NADPH
x24 = Ribulose5P
x25 = Ribose5P
x26 = Xyl5P
x27 = Seduhept7P
x28 = Erythrose4P
x29 = GLCo
x30 = GLCi
x31 = F26BP