burbon[12],
bobru[11], obonu[9], brono[7], obron[7],
bobu[10], bobo[8], bonu[8], buno[8], boru[8], buro[8], bono[6], obon[6], bron[6], boro[6], robo[6], runo[6], urno[6], noro[4],
bub[9], bob[7], bun[7], obu[7], bru[7], bur[7], bon[5], bor[5], rob[5], nur[5], run[5], urn[5], oru[5], ono[3], nor[3], oro[3],
bu[6], bo[4], nu[4], no[2], on[2], or[2], ro[2],
