bomu[9], umbo[9], brum[9], rumb[9], umbr[9], boru[8], buro[8], brom[7], romb[7], moru[7],
bum[8], umb[8], obu[7], bru[7], bur[7], bom[6], mob[6], mru[6], mur[6], rum[6], bor[5], rob[5], oru[5], mor[4],
bu[6], mu[5], bo[4], om[3], or[2], ro[2],
