preferred_name: orotate(out) + nicotinate(in) = orotate(in) + nicotinate(out)
preferred_name_lc: orotate(out) + nicotinate(in) = orotate(in) + nicotinate(out)
label: orotate(out) + nicotinate(in) = orotate(in) + nicotinate(out)
label_lc: orotate(out) + nicotinate(in) = orotate(in) + nicotinate(out)