pocono[8],
scoop[7], opono[6],
poco[6], opon[5], pono[5], snop[5], opos[5], ospo[5],
pop[5], noc[4], soc[4], osp[4], ono[3], nos[3], son[3], oso[3],
co[3], op[3], po[3], no[2], on[2], os[2],
