-er a-a a-c a-t aaa aac aae aaf aam aao aap aar aat ac- aca acc ace acf acm aco acp acr act aea aec aee aef aem aeo aep aer aet af- afa afc afe aff afm afo afp afr aft ama amc ame amf amm amo amp amr amt aoa aoc aoe aof aom aoo aop aor aot ap- apa apc ape apf apm apo app apr apt ar- ara arc are arf arm aro arp arr art at- ata atc ate atf atm ato atp atr att c-- caa cac cae caf cam cao cap car cat cca ccc cce ccf ccm cco ccp ccr cct ce- cea cec cee cef cem ceo cep cer cet cfa cfc cfe cff cfm cfo cfp cfr cft cma cmc cme cmf cmm cmo cmp cmr cmt co- coa coc coe cof com coo cop cor cot cpa cpc cpe cpf cpm cpo cpp cpr cpt cra crc cre crf crm cro crp crr crt cta ctc cte ctf ctm cto ctp ctr ctt eaa eac eae eaf eam eao eap ear eat ec- eca ecc ece ecf ecm eco ecr ect eea eec eee eef eem eeo eep eer eet ef- efa efc efe eff efm efo efp efr eft em- ema emc eme emf emm emo emp emr emt eo- eoa eoc eoe eof eom eoo eop eor eot ep- epa epc epe epf epm epo epp epr ept era erc ere erf erm ero erp err ert eta etc ete etf etm eto etp etr ett faa fac fae faf fam fao fap far fat fca fcc fce fcf fcm fco fcp fcr fct fea fec fee fef fem feo fep fer fet ffa ffc ffe fff ffm ffo ffp ffr fft fma fmc fme fmf fmm fmo fmp fmr fmt foa foc foe fof fom foo fop for fot fpa fpc fpe fpm fpo fpp fpr fpt fra frc fre frf frm fro frp frr frt fta ftc fte ftf ftm fto ftp ftr ftt m-f m-o m-r maa mac mae maf mam mao map mar mat mc- mca mcc mce mcf mcm mco mcp mcr mct mea mec mee mef mem meo mep mer met mfa mfc mfe mff mfm mfo mfp mfr mft mma mmc mme mmf mmm mmo mmp mmr mmt moa moc moe mof mom moo mop mor mot mpa mpc mpe mpf mpm mpo mpp mpr mpt mra mrc mre mrf mrm mro mrp mrr mrt mta mtc mte mtf mtm mto mtp mtr mtt oaa oac oae oaf oam oao oap oar oat oc- oca occ ocf ocm oco ocp ocr oct oea oec oee oef oem oeo oep oer oet of- ofa ofc ofe off ofm ofo ofp ofr oft om- oma omc ome omf omm omo omp omr omt oo- ooa ooc oof oom ooo oop oor oot op- opa opc ope opf opm opo opp opr opt or- ora orc ore orf orm oro orp orr ort ot- ota otc ote otf otm oto otp otr ott p-p paa pac pae paf pam pao pap par pat pca pcc pce pcf pcm pco pcp pcr pct pea pec pee pef pem peo pep per pet pfa pfc pfe pff pfm pfo pfp pfr pft pma pmc pme pmf pmm pmo pmp pmr pmt poa poc poe pof pom poo pop por pot ppa ppc ppe ppf ppm ppo ppp ppr ppt pra prc pre prf prm pro prp prr prt pt- pta ptc pte ptf ptm pto ptp ptr ptt ra- raa rac rae raf ram rao rap rar rat rca rcc rce rcf rcm rco rcp rcr rct re- rea rec ree ref rem reo rep rer ret rfa rfc rfe rff rfm rfo rfp rfr rft rma rmc rme rmf rmm rmo rmp rmr rmt roa roc roe rof rom roo rop ror rot rpa rpc rpe rpf rpm rpo rpp rpr rpt rra rrc rrf rrm rrp rrr rrt rta rtc rte rtf rtm rto rtp rtr rtt taa tac tae taf tam tao tap tar tat tca tcc tce tcf tcm tco tcp tcr tct te- tea tec tee tef tem teo tep ter tet tfa tfc tfe tff tfm tfo tfp tfr tft tma tmc tme tmf tmm tmo tmp tmr tmt to- toa toc toe tof tom too top tor tot tpa tpc tpe tpf tpm tpo tpp tpr tpt tra trc tre trf trm tro trp trr trt tta ttc tte ttf ttm tto ttp ttr ttt