enbu[8], bonu[8], buno[8], eonu[6], neon[4],
buu[9], bun[7], obu[7], ben[5], bon[5], eon[3], one[3], non[3],
bu[6], uu[6], be[4], bo[4], nu[4], en[2], eo[2], no[2], on[2],
