bido[7], dobo[7], oboi[6], ibis[6], bios[6], bosi[6], boso[6], ooid[5], idis[5], diso[5], sodo[5],
bid[6], bod[6], boi[5], obi[5], bis[5], doi[4], ido[4], odo[4], dis[4], osi[3], sio[3], soi[3], oso[3],
bi[4], bo[4], id[3], do[3], od[3], ii[2], si[2], os[2],
