label: a 4-H-anthocyanidin with a 3-hydroxy group + succinate + CO2 + 2 H2O => a (2R,3S,4S)-leucoanthocyanidin + 2-oxoglutarate + O2
label_lc: a 4-h-anthocyanidin with a 3-hydroxy group + succinate + co2 + 2 h2o => a (2r,3s,4s)-leucoanthocyanidin + 2-oxoglutarate + o2