preferred_name: proviolacein + CO2 + H2O => protoviolaceinate + O2 + H(+)
preferred_name_lc: proviolacein + co2 + h2o => protoviolaceinate + o2 + h(+)
label: proviolacein + CO2 + H2O => protoviolaceinate + O2 + H(+)
label_lc: proviolacein + co2 + h2o => protoviolaceinate + o2 + h(+)