bolu[9], bulo[9], lobu[9], lubo[9], ubol[9], losu[7], olsu[7], solu[7], soul[7],
bul[8], lub[8], obu[7], bus[7], bol[6], lob[6], sou[5], los[4], ols[4], sol[4],
bu[6], lu[5], ul[5], bo[4], su[4], os[2],
