olbor[8], robol[8], oboro[7],
obło[8], bolo[7], lobo[7], obol[7], boro[6], robo[6], loro[5], rolo[5],
obł[7], bol[6], lob[6], bor[5], rob[5], lor[4], rol[4], oro[3],
bo[4], or[2], ro[2],
