preferred_name: cholate + FADH2 => deoxycholate + FAD + H2O + H(+)
preferred_name_lc: cholate + fadh2 => deoxycholate + fad + h2o + h(+)
label: cholate + FADH2 => deoxycholate + FAD + H2O + H(+)
label_lc: cholate + fadh2 => deoxycholate + fad + h2o + h(+)