-up a-a a-c a-t aaa aac aae aao aap aas aat aau aax ac- aca acc ace aco acp acs act acu acx aea aec aee aeo aep aes aet aeu aex aoa aoc aoe aoo aop aos aot aou aox ap- apa apc ape apo app aps apt apu apx as- asa asc ase aso asp ass ast asu asx at- ata atc ate ato atp ats att atu atx au- aua auc aue auo aup aus aut aux ax- axa axe axo axp axs axt axx c-- caa cac cae cao cap cas cat cau cax cca ccc cce cco ccp ccs cct ccu ccx ce- cea cec cee ceo cep ces cet ceu cex co- coa coc coe coo cop cos cot cou cox cpa cpc cpe cpo cpp cps cpt cpu cpx csa csc cse cso csp css cst csu csx cta ctc cte cto ctp cts ctt ctu ctx cua cuc cue cuo cup cus cut cuu cxc cxo cxp cxs cxt cxx eaa eac eae eao eap eas eat eau eax ec- eca ecc ece eco ecs ect ecu ecx eea eec eee eeo eep ees eet eex eo- eoa eoc eoe eoo eop eos eot eou ep- epa epc epe epo epp eps ept epu epx es- esa esc ese eso esp ess est esu esx eta etc ete eto etp ets ett etu etx eu- eua euc eue eup eus eut eux ex- exa exc exe exo exp exs ext exu exx oaa oac oae oao oap oas oat oau oax oc- oca occ oco ocp ocs oct ocu ocx oea oec oee oeo oep oes oet oex oo- ooa ooc ooo oop oos oot oox op- opa opc ope opo opp ops opt opx os- osa osc ose oso osp oss ost osu osx ot- ota otc ote oto otp ots ott otu ou- oua ouc oue ouo oup ous out ox- oxa oxc oxo oxt oxx p-p paa pac pae pao pap pas pat pau pax pca pcc pce pco pcp pcs pct pcu pcx pea pec pee peo pep pes pet peu pex poa poc poe poo pop pos pot pou pox ppa ppc ppe ppo ppp pps ppt ppu ppx ps- psa psc pse pso psp pss pst psu psx pt- pta ptc pte pto ptp pts ptt ptu ptx pua puc pue pup pus put puu pxc pxe pxs pxt saa sac sae sao sap sas sat sau sax sca scc sce sco scp scs sct scu scx se- sea sec see seo sep ses set seu sex soa soc soe soo sop sos sot sou sox spa spc spe spo spp sps spt spu spx ss- ssa ssc sse sso ssp sss sst ssu ssx sta stc ste sto stp sts stt stu stx sua suc sue suo sup sus sut suu sux sxc sxs sxt sxu t-x taa tac tae tao tap tas tat tau tax tca tcc tce tco tcp tcs tct tcu tcx te- tea tec tee teo tep tes tet teu tex to- toa toc toe too top tos tot tou tox tpa tpc tpe tpo tpp tps tpt tpu tpx tsa tsc tse tso tsp tss tst tsu tsx tta ttc tte tto ttp tts ttt ttu ttx tua tuc tue tuo tup tus tut tuu tux txe txs txt txu ua- uaa uac uae uao uap uas uat uau uca ucc uce uco ucp ucs uct ucu uea uec uee uep ues uet uoa uoc uoe uoo uop uos uot uox up- upa upc upe upo upp ups upt upu upx usa usc use uso usp uss ust usu usx uta utc ute uto utp uts utt utu utx uua uuc uue uus uut uuu uxc uxo uxt uxu xaa xac xap xas xat xau xcp xcx xee xep xes xet xeu xex xoa xoc xoo xop xos xot xox xpa xpc xpe xpo xpp xps xpt xsa xsc xsp xss xst xtc xtp xts xtx xue xup xus xxo xxp xxx