preferred_name: urate(out) + n chloride(in) <=> urate(in) + n chloride(out)
preferred_name_lc: urate(out) + n chloride(in) <=> urate(in) + n chloride(out)
label: urate(out) + n chloride(in) <=> urate(in) + n chloride(out)
label_lc: urate(out) + n chloride(in) <=> urate(in) + n chloride(out)