-er a-a a-c a-t aaa aac aae aaf aam aan aao aar aat ac- aca acc ace acf acm acn aco acr act aea aec aee aef aem aen aeo aer aet af- afa afc afe aff afm afn afo afr aft ama amc ame amf amm amn amo amr amt an- ana anc ane anf anm ann ano anr ant aoa aoc aoe aof aom aon aoo aor aot ar- ara arc are arf arm arn aro arr art at- ata atc ate atf atm atn ato atr att c-- caa cac cae caf cam can cao car cat cca ccc cce ccf ccm ccn cco ccr cct ce- cea cec cee cef cem cen ceo cer cet cfa cfc cfe cff cfm cfn cfo cfr cft cma cmc cme cmf cmm cmn cmo cmr cmt cn- cna cnc cne cnf cnm cnn cno cnr cnt co- coa coc coe cof com con coo cor cot cra crc cre crf crm crn cro crr crt cta ctc cte ctf ctm ctn cto ctr ctt eaa eac eae eaf eam ean eao ear eat ec- eca ecc ece ecf ecm ecn eco ecr ect eea eec eee eef eem een eeo eer eet ef- efa efc efe eff efm efo efr eft em- ema emc eme emf emm emn emo emr emt en- ena enc ene enf enm enn eno enr ent eo- eoa eoc eoe eof eom eon eoo eor eot era erc ere erf erm ern ero err ert eta etc ete etf etm etn eto etr ett faa fac fae faf fam fan fao far fat fca fcc fce fcf fcm fcn fco fcr fct fea fec fee fef fem fen feo fer fet ffa ffc ffe fff ffm ffn ffo ffr fft fma fmc fme fmf fmm fmn fmo fmr fmt fna fnc fne fnf fnm fnn fnr fnt foa foc foe fof fom fon foo for fot fra frc fre frf frm frn fro frr frt fta ftc fte ftf ftm ftn fto ftr ftt m-f m-o m-r maa mac mae maf mam man mao mar mat mc- mca mcc mce mcf mcm mcn mco mcr mct mea mec mee mef mem men meo mer met mfa mfc mfe mff mfm mfn mfo mfr mft mma mmc mme mmf mmm mmn mmo mmr mmt mna mnc mne mnf mnm mnn mno mnr mnt moa moc moe mof mom mon moo mor mot mra mrc mre mrf mrm mrn mro mrr mrt mta mtc mte mtf mtm mtn mto mtr mtt naa nac nae naf nam nan nao nar nat nca ncc nce ncf ncm ncn nco ncr nct ne- nea nec nee nef nem nen neo ner net nfa nfc nfe nff nfn nfo nfr nft nma nmc nme nmm nmn nmo nmr nmt nna nnc nne nnf nnm nnn nno nnt no- noa noc noe nof nom non noo nor not nra nrc nre nrf nrm nrn nro nrr nrt nta ntc nte ntf ntm ntn nto ntr ntt oaa oac oae oaf oam oan oao oar oat oc- oca occ ocf ocm ocn oco ocr oct oea oec oee oef oem oen oeo oer oet of- ofa ofc ofe off ofm ofn ofo ofr oft om- oma omc ome omf omm omn omo omr omt on- ona onc one onf onn ono onr ont oo- ooa ooc oof oom oon ooo oor oot or- ora orc ore orf orm orn oro orr ort ot- ota otc ote otf otm otn oto otr ott ra- raa rac rae raf ram ran rao rar rat rca rcc rce rcf rcm rcn rco rcr rct re- rea rec ree ref rem ren reo rer ret rfa rfc rfe rff rfm rfn rfo rfr rft rma rmc rme rmf rmm rmn rmo rmr rmt rna rnc rnm rnn rno rnr rnt roa roc roe rof rom ron roo ror rot rra rrc rrf rrm rrn rrr rrt rta rtc rte rtf rtm rtn rto rtr rtt taa tac tae taf tam tan tao tar tat tca tcc tce tcf tcm tcn tco tcr tct te- tea tec tee tef tem ten teo ter tet tfa tfc tfe tff tfm tfn tfo tfr tft tma tmc tme tmf tmm tmn tmo tmr tmt tna tnc tne tnf tnm tnn tno tnr tnt to- toa toc toe tof tom ton too tor tot tra trc tre trf trm trn tro trr trt tta ttc tte ttf ttm ttn tto ttr ttt