bose[6], esem[5], esom[5], meso[5],
bom[6], mob[6], bee[5], mee[4], mes[4], sem[4], osm[4], som[4],
be[4], bo[4], em[3], me[3], om[3], ee[2], eo[2], es[2], se[2], os[2],
