bolu[9], bulo[9], lobu[9], lubo[9], ubol[9], bulw[9], clou[8], boru[8], buro[8], luro[7], ulwo[7], uwol[7], wolu[7], rowu[6], woru[6],
buc[8], bul[8], lub[8], obu[7], bru[7], bur[7], cob[6], bol[6], lob[6], cru[6], lur[6], lwu[6], ulw[6], bor[5], rob[5], oru[5], lor[4], rol[4], rwo[3],
bu[6], lu[5], ul[5], bo[4], wu[4], co[3], or[2], ro[2],
