preferred_name: norspermine + O2 + H2O = norspermidine + 3-aminopropanal + H2O2
preferred_name_lc: norspermine + o2 + h2o = norspermidine + 3-aminopropanal + h2o2
label: norspermine + O2 + H2O = norspermidine + 3-aminopropanal + H2O2
label_lc: norspermine + o2 + h2o = norspermidine + 3-aminopropanal + h2o2