polon[7], polor[7], orlon[6], ponor[6], porno[6],
plon[6], loop[6], polo[6], pool[6], opon[5], pono[5], loro[5], rolo[5], poro[5], ropo[5], noro[4],
lor[4], rol[4], por[4], pro[4], rop[4], ono[3], nor[3], oro[3],
op[3], po[3], no[2], on[2], or[2], ro[2],
