preferred_name: malonate(in) + (S)-malate(out) => malonate(out) + (S)-malate(in)
preferred_name_lc: malonate(in) + (s)-malate(out) => malonate(out) + (s)-malate(in)
label: malonate(in) + (S)-malate(out) => malonate(out) + (S)-malate(in)
label_lc: malonate(in) + (s)-malate(out) => malonate(out) + (s)-malate(in)