bomu[9], umbo[9], boom[7], obom[7],
bum[8], umb[8], obu[7], bom[6], mob[6], emu[6], bee[5], mee[4], omo[4],
bu[6], mu[5], be[4], bo[4], em[3], me[3], om[3], ee[2], eo[2],
