morom[7], osmom[7], somom[7], rosom[6],
omom[6], moro[5], orom[5], osom[5], somo[5], mors[5], srom[5], roso[4],
omo[4], mor[4], osm[4], som[4], oro[3], oso[3], ros[3],
om[3], or[2], ro[2], os[2],
