keto-D-fructose 6-phosphate + phosphate <=> acetyl phosphate + D-erythrose 4-phosphate + H2O
keto-d-fructose 6-phosphate + phosphate <=> acetyl phosphate + d-erythrose 4-phosphate + h2o
keto-D-fructose 6-phosphate + phosphate <=> acetyl phosphate + D-erythrose 4-phosphate + H2O
keto-d-fructose 6-phosphate + phosphate <=> acetyl phosphate + d-erythrose 4-phosphate + h2o