bolu[9], bulo[9], lobu[9], lubo[9], ubol[9], lupo[8], oplu[8], polu[8], pulo[8],
bul[8], lub[8], pub[8], obu[7], lup[7], pul[7], bol[6], lob[6], opu[6],
bu[6], lu[5], ul[5], bo[4], op[3], po[3],
