preferred_name: cis-aconitate(out) + citrate(in) => cis-aconitate(in) + citrate(out)
preferred_name_lc: cis-aconitate(out) + citrate(in) => cis-aconitate(in) + citrate(out)
label: cis-aconitate(out) + citrate(in) => cis-aconitate(in) + citrate(out)
label_lc: cis-aconitate(out) + citrate(in) => cis-aconitate(in) + citrate(out)