bolu[9], bulo[9], lobu[9], lubo[9], ubol[9], bonu[8], buno[8], boru[8], buro[8], luno[7], luro[7], bron[6], runo[6], urno[6],
bul[8], lub[8], bun[7], obu[7], bru[7], bur[7], bol[6], lob[6], lnu[6], lun[6], nul[6], lur[6], bon[5], bor[5], rob[5], nur[5], run[5], urn[5], oru[5], lor[4], rol[4], nor[3],
bu[6], lu[5], ul[5], bo[4], nu[4], no[2], on[2], or[2], ro[2],
