bugi[10], gubi[10], bogu[10], boyu[9], bigo[8], bogi[8], uboi[8],
bug[9], gub[9], big[7], gib[7], obu[7], boy[6], oby[6], boi[5], obi[5], goi[5], ogi[5],
bu[6], gu[6], by[5], bi[4], bo[4], go[4],
