-al -ol a-a aaa aal aan aao aap aax al- ala all aln alo alp alx an- ana anl ann ano anp anx aoa aol aon aoo aop aox ap- apa apl apn apo app apx ax- axa axl axn axo axp axx l-p la- laa lal lan lao lap lax lla lll lln llo llp lna lnl lnn lno lnp loa lol lon loo lop lox lpa lpl lpn lpo lpp lpx lxo lxx naa nal nan nao nap nax nla nll nln nlo nlp nlx nna nnl nnn nno nnp no- noa nol non noo nop nox npa npl npn npo npp nxl oaa oal oan oao oap oax ola oll oln olo olp on- ona onl onn ono onp onx oo- ooa ool oon ooo oop oox op- opa opl opn opo opp opx ox- oxa oxn oxo oxx p-p paa pal pan pao pap pax pla pll pln plo plp plx pn- pna pnl pnn pno pnp pnx poa pol pon poo pop pox ppa ppl ppn ppo ppp ppx pxl xaa xal xan xap xla xna xno xoa xon xoo xop xox xpa xpl xpn xpo xpp xxl xxo xxp xxx