bryi[7], rybi[7], bory[7], roby[7], rybo[7], brio[6], broi[6], robi[6], birr[6],
boy[6], oby[6], bry[6], ryb[6], boi[5], obi[5], bor[5], rob[5], brr[5], roi[3],
by[5], bi[4], bo[4], or[2], ro[2],
