ambu[9], umba[9], bomu[9], umbo[9], ameb[7], ambo[7], boom[7], obom[7],
bum[8], umb[8], obu[7], amb[6], bam[6], bom[6], mob[6], emu[6], abo[5], boa[5], oba[5], moa[4], oma[4], omo[4],
bu[6], mu[5], ba[4], be[4], bo[4], au[4], ma[3], em[3], me[3], om[3], eo[2],
