hobo[8], bohr[8], boot[7], bort[7], torb[7], boro[6], robo[6], horo[6], root[5], roto[5], toro[5],
bot[6], hot[6], oho[5], bor[5], rob[5], hor[5], rho[5], oto[4], ort[4], rot[4], tor[4], oro[3],
bo[4], ho[4], oh[4], ot[3], to[3], or[2], ro[2],