label: all-trans-4,4'-diapolycopene-4,4'-dial + 2 A + 2 H2O <=> all-trans-4,4'-diapolycopene-4,4'-dioate + 2 AH2 + 2 H(+)
label_lc: all-trans-4,4'-diapolycopene-4,4'-dial + 2 a + 2 h2o <=> all-trans-4,4'-diapolycopene-4,4'-dioate + 2 ah2 + 2 h(+)