trans-2,3-epoxysuccinate + H2O => (2R,3S)-tartrate
trans-2,3-epoxysuccinate + h2o => (2r,3s)-tartrate
trans-2,3-epoxysuccinate + H2O => (2R,3S)-tartrate
trans-2,3-epoxysuccinate + h2o => (2r,3s)-tartrate