label: (2E,6E,10E)-geranylgeranyl-triacetate lactone + AH2 + O2 <=> (S)-(2E,6E,10E)-epoxygeranylgeranyl-triacetate lactone + A + H2O
label_lc: (2e,6e,10e)-geranylgeranyl-triacetate lactone + ah2 + o2 <=> (s)-(2e,6e,10e)-epoxygeranylgeranyl-triacetate lactone + a + h2o