bobem[10], bibom[10], bobie[9], bomie[8],
bomb[9], bibo[8], bimo[7], biom[7], obie[6], omie[5],
bib[7], bob[7], bim[6], bom[6], mob[6], boi[5], obi[5], moi[4],
be[4], bi[4], bo[4], em[3], me[3], im[3], mi[3], om[3], eo[2],
