preferred_name: serotonin(out) + chloride(out) + Na(+)(out) = serotonin(in) + chloride(in) + Na(+)(in)
preferred_name_lc: serotonin(out) + chloride(out) + na(+)(out) = serotonin(in) + chloride(in) + na(+)(in)
label: serotonin(out) + chloride(out) + Na(+)(out) = serotonin(in) + chloride(in) + Na(+)(in)
label_lc: serotonin(out) + chloride(out) + na(+)(out) = serotonin(in) + chloride(in) + na(+)(in)