preferred_name: a menaquinol + 2 nitric oxide => nitrous oxide + a menaquinone + H2O
preferred_name_lc: a menaquinol + 2 nitric oxide => nitrous oxide + a menaquinone + h2o
label: a menaquinol + 2 nitric oxide => nitrous oxide + a menaquinone + H2O
label_lc: a menaquinol + 2 nitric oxide => nitrous oxide + a menaquinone + h2o