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