label: tetrahydro-4-hydroxyphenylpyruvate + NAD(+) => 3-(4-hydroxycyclohex-2-en-1-ylidene)pyruvate + NADH + H(+)
label_lc: tetrahydro-4-hydroxyphenylpyruvate + nad(+) => 3-(4-hydroxycyclohex-2-en-1-ylidene)pyruvate + nadh + h(+)