bobu[10], bomb[9], bomu[9], umbo[9], bums[9], osmu[7], sumo[7],
bub[9], bum[8], umb[8], bob[7], obu[7], bus[7], bom[6], mob[6], mus[6], sum[6], sou[5], osm[4], som[4],
bu[6], mu[5], bo[4], su[4], om[3], os[2],
