-al -ol a-a a-c a-t aaa aac aal aan aao aap aat aax ac- aca acc acl acn aco acp act acx al- ala alc all aln alo alp alt alx an- ana anc anl ann ano anp ant anx aoa aoc aol aon aoo aop aot aox ap- apa apc apl apn apo app apt apx at- ata atc atl atn ato atp att atx ax- axa axl axn axo axp axt axx c-- caa cac cal can cao cap cat cax cca ccc ccl ccn cco ccp cct ccx cl- cla clc cll cln clo clp clt clx cn- cna cnc cnl cnn cno cnp cnt cnx co- coa coc col con coo cop cot cox cpa cpc cpl cpn cpo cpp cpt cpx cta ctc ctl ctn cto ctp ctt ctx cxc cxl cxo cxp cxt cxx l-p la- laa lac lal lan lao lap lat lax lca lcc lcl lcn lco lcp lct lcx lla llc lll lln llo llp llt lna lnc lnl lnn lno lnp lnt loa loc lol lon loo lop lot lox lpa lpc lpl lpn lpo lpp lpt lpx lta ltc ltl lto ltp ltt ltx lxc lxo lxx naa nac nal nan nao nap nat nax nca ncc ncl ncn nco ncp nct ncx nla nlc nll nln nlo nlp nlt nlx nna nnc nnl nnn nno nnp nnt no- noa noc nol non noo nop not nox npa npc npl npn npo npp npt nta ntc ntn nto ntp ntt ntx nxc nxl nxt oaa oac oal oan oao oap oat oax oc- oca occ ocl ocn oco ocp oct ocx ola olc oll oln olo olp olt on- ona onc onl onn ono onp ont onx oo- ooa ooc ool oon ooo oop oot oox op- opa opc opl opn opo opp opt opx ot- ota otc otl otn oto otp ott ox- oxa oxc oxn oxo oxt oxx p-p paa pac pal pan pao pap pat pax pca pcc pcl pcn pco pcp pct pcx pla plc pll pln plo plp plt plx pn- pna pnc pnl pnn pno pnp pnt pnx poa poc pol pon poo pop pot pox ppa ppc ppl ppn ppo ppp ppt ppx pt- pta ptc ptl ptn pto ptp ptt ptx pxc pxl pxt t-x taa tac tal tan tao tap tat tax tca tcc tcl tcn tco tcp tct tcx tla tlc tll tln tlo tlp tlt tlx tna tnc tnl tnn tno tnp tnt tnx to- toa toc tol ton too top tot tox tpa tpc tpl tpn tpo tpp tpt tpx tta ttc ttl ttn tto ttp ttt ttx txl txn txt xaa xac xal xan xap xat xcl xcp xcx xla xlt xna xnc xno xoa xoc xon xoo xop xot xox xpa xpc xpl xpn xpo xpp xpt xtc xtp xtx xxl xxo xxp xxx