a-a a-c a-t aaa aac aae aaf aam aap aat ac- aca acc ace acf acm acp act aea aec aee aef aem aep aet af- afa afc afe aff afm afp aft ama amc ame amf amm amp amt ap- apa apc ape apf apm app apt at- ata atc ate atf atm atp att c-- caa cac cae caf cam cap cat cca ccc cce ccf ccm ccp cct ce- cea cec cee cef cem cep cet cfa cfc cfe cff cfm cfp cft cma cmc cme cmf cmm cmp cmt cpa cpc cpe cpf cpm cpp cpt cta ctc cte ctf ctm ctp ctt eaa eac eae eaf eam eap eat ec- eca ecc ece ecf ecm ect eea eec eee eef eem eep eet ef- efa efc efe eff efm efp eft em- ema emc eme emf emm emp emt ep- epa epc epe epf epm epp ept eta etc ete etf etm etp ett faa fac fae faf fam fap fat fca fcc fce fcf fcm fcp fct fea fec fee fef fem fep fet ffa ffc ffe fff ffm ffp fft fma fmc fme fmf fmm fmp fmt fpa fpc fpe fpm fpp fpt fta ftc fte ftf ftm ftp ftt m-f maa mac mae maf mam map mat mc- mca mcc mce mcf mcm mcp mct mea mec mee mef mem mep met mfa mfc mfe mff mfm mfp mft mma mmc mme mmf mmm mmp mmt mpa mpc mpe mpf mpm mpp mpt mta mtc mte mtf mtm mtp mtt p-p paa pac pae paf pam pap pat pca pcc pce pcf pcm pcp pct pea pec pee pef pem pep pet pfa pfc pfe pff pfm pfp pft pma pmc pme pmf pmm pmp pmt ppa ppc ppe ppf ppm ppp ppt pt- pta ptc pte ptf ptm ptp ptt taa tac tae taf tam tap tat tca tcc tce tcf tcm tcp tct te- tea tec tee tef tem tep tet tfa tfc tfe tff tfm tfp tft tma tmc tme tmf tmm tmp tmt tpa tpc tpe tpf tpm tpp tpt tta ttc tte ttf ttm ttp ttt