bonu[8], buno[8], boru[8], buro[8], buzo[8], burz[8], bron[6], runo[6], urno[6], zorb[6],
bun[7], obu[7], bru[7], bur[7], buz[7], bzu[7], bon[5], bor[5], rob[5], nur[5], run[5], urn[5], oru[5], ozu[5], uzo[5], nor[3], zon[3], orz[3],
bu[6], bo[4], nu[4], no[2], on[2], or[2], ro[2], oz[2],
