brio[6], broi[6], robi[6], birr[6],
boi[5], obi[5], bor[5], rob[5], brr[5], poi[4], por[4], pro[4], rop[4], prr[4], roi[3],
iż[6], oż[6], bi[4], bo[4], pi[3], op[3], po[3], or[2], ro[2],
