bigi[8], bigo[8], bogi[8], bido[7], dogi[7], dobo[7], oboi[6], ooid[5],
big[7], gib[7], bid[6], gid[6], bod[6], dog[6], boi[5], obi[5], goi[5], ogi[5], doi[4], ido[4], odo[4],
bi[4], bo[4], go[4], id[3], do[3], od[3], ii[2],
