preferred_name: urate(out) + (S)-lactate(in) => urate(in) + (S)-lactate(out)
preferred_name_lc: urate(out) + (s)-lactate(in) => urate(in) + (s)-lactate(out)
label: urate(out) + (S)-lactate(in) => urate(in) + (S)-lactate(out)
label_lc: urate(out) + (s)-lactate(in) => urate(in) + (s)-lactate(out)