besen[7], ebnes[7],
oben[7], beos[7], bons[7], snob[7], bene[6], eben[6], ebne[6], seen[4],
beo[6], bon[6], ons[4], nee[3], see[3], sen[3],
ob[5], on[3], os[3], so[3], ne[2], es[2],