-al -ol a-a a-c aaa aac aae aaf aah aal aao aap aax ac- aca acc ace acf ach acl aco acp acx aea aec aee aef aeh ael aeo aep aex af- afa afc afe aff afh afl afo afp afx aha ahc ahe ahf ahh ahl aho ahp ahx al- ala alc ale alf alh all alo alp alx aoa aoc aoe aof aoh aol aoo aop aox ap- apa apc ape apf aph apl apo app apx ax- axa axe axh axl axo axp axx c-- caa cac cae caf cah cal cao cap cax cca ccc cce ccf cch ccl cco ccp ccx ce- cea cec cee cef ceh cel ceo cep cex cfa cfc cfe cff cfh cfl cfo cfp cfx ch- cha chc che chf chh chl cho chp chx cl- cla clc cle clf clh cll clo clp clx co- coa coc coe cof coh col coo cop cox cpa cpc cpe cpf cph cpl cpo cpp cpx cxc cxf cxh cxl cxo cxp cxx eaa eac eae eaf eah eal eao eap eax ec- eca ecc ece ecf ech ecl eco ecx eea eec eee eef eel eeo eep eex ef- efa efc efe eff efh efl efo efp efx eha ehc ehe ehf ehh ehl eho ehp ela elc ele elf elh ell elo elp elx eo- eoa eoc eoe eof eoh eol eoo eop ep- epa epc epe epf eph epl epo epp epx ex- exa exc exe exh exl exo exp exx faa fac fae faf fah fal fao fap fax fca fcc fce fcf fcl fco fcp fcx fea fec fee fef feh fel feo fep fex ffa ffc ffe fff ffh ffl ffo ffp ffx fha fhc fhe fhf fhh fhl fho fhp fla flc fle flf fll flo flp flx foa foc foe fof foh fol foo fop fox fpa fpc fpe fph fpl fpo fpp fpx fxe fxp fxx haa hac hae haf hah hal hao hap hax hca hcc hce hcf hch hcl hco hcp he- hea hec hee hef heh hel heo hep hex hfa hfc hfe hff hfh hfl hfo hfp hha hhc hhe hhf hhh hhl hho hhp hla hlc hle hlf hlh hll hlo hlp hlx hoa hoc hoe hof hoh hol hoo hop hox hpa hpc hpe hpf hph hpl hpo hpp hxc hxl l-p la- laa lac lae laf lah lal lao lap lax lca lcc lce lcf lch lcl lco lcp lcx lea lec lee lef leh lel leo lep lex lfa lfc lfe lff lfh lfl lfo lfp lfx lha lhc lhf lhh lho lhp lhx lla llc lle llf lll llo llp loa loc loe lof loh lol loo lop lox lpa lpc lpe lpf lph lpl lpo lpp lpx lxc lxo lxx oaa oac oae oaf oah oal oao oap oax oc- oca occ ocf och ocl oco ocp ocx oea oec oee oef oeh oel oeo oep oex of- ofa ofc ofe off ofl ofo ofp ofx oha ohc ohe ohf ohh ohl oho ohp ola olc ole olf oll olo olp oo- ooa ooc oof ooh ool ooo oop oox op- opa opc ope opf oph opl opo opp opx ox- oxa oxc oxf oxo oxx p-p paa pac pae paf pah pal pao pap pax pca pcc pce pcf pch pcl pco pcp pcx pea pec pee pef peh pel peo pep pex pfa pfc pfe pff pfl pfo pfp pfx pha phc phe phf phl pho php phx pla plc ple plf plh pll plo plp plx poa poc poe pof poh pol poo pop pox ppa ppc ppe ppf pph ppl ppo ppp ppx pxc pxe pxl xaa xac xaf xal xap xcf xch xcl xcp xcx xee xel xep xex xfa xfe xfh xfl xfx xhp xla xlf xoa xoc xof xoo xop xox xpa xpc xpe xpf xpl xpo xpp xxl xxo xxp xxx