a-a a-c a-t aaa aac aae aan aap aas aat aav ac- aca acc ace acn acp acs act acv aea aec aee aen aep aes aet aev an- ana anc ane ann anp ans ant anv ap- apa apc ape apn app aps apt apv as- asa asc ase asn asp ass ast asv at- ata atc ate atn atp ats att atv av- ava avc ave avn avp avs avt c-- caa cac cae can cap cas cat cav cca ccc cce ccn ccp ccs cct ccv ce- cea cec cee cen cep ces cet cev cn- cna cnc cne cnn cnp cns cnt cnv cpa cpc cpe cpn cpp cps cpt cpv csa csc cse csn csp css cst csv cta ctc cte ctn ctp cts ctt ctv cva cvc cve cvn cvp cvs cvt cvv eaa eac eae ean eap eas eat eav ec- eca ecc ece ecn ecs ect ecv eea eec eee een eep ees eet eev en- ena enc ene enn enp ens ent env ep- epa epc epe epn epp eps ept es- esa esc ese esn esp ess est esv eta etc ete etn etp ets ett etv eva evc eve evn evp evs evt evv naa nac nae nan nap nas nat nav nca ncc nce ncn ncp ncs nct ncv ne- nea nec nee nen nep nes net nev nna nnc nne nnn nnp nns nnt nnv npa npc npe npn npp nps npt npv nsa nsc nse nsn nsp nss nst nsv nta ntc nte ntn ntp nts ntt ntv nva nvc nve nvn nvp nvt nvv p-p paa pac pae pan pap pas pat pav pca pcc pce pcn pcp pcs pct pcv pea pec pee pen pep pes pet pev pn- pna pnc pne pnn pnp pns pnt pnv ppa ppc ppe ppn ppp pps ppt ppv ps- psa psc pse psn psp pss pst psv pt- pta ptc pte ptn ptp pts ptt ptv pva pvc pve pvn pvp pvs pvt pvv saa sac sae san sap sas sat sav sca scc sce scn scp scs sct scv se- sea sec see sen sep ses set sev sna snc sne snn snp sns snt snv spa spc spe spn spp sps spt spv ss- ssa ssc sse ssn ssp sss sst ssv sta stc ste stn stp sts stt stv sva svc sve svn svp svs svt svv taa tac tae tan tap tas tat tav tca tcc tce tcn tcp tcs tct tcv te- tea tec tee ten tep tes tet tev tna tnc tne tnn tnp tns tnt tpa tpc tpe tpn tpp tps tpt tpv tsa tsc tse tsn tsp tss tst tsv tta ttc tte ttn ttp tts ttt ttv tva tvc tve tvn tvp tvs tvt v-a v-e vaa vac vae van vap vas vat vav vca vcc vce vcn vcp vcs vct vea vec vee ven vep ves vet vn- vna vnp vns vnv vpa vpc vpe vpn vpp vps vpt vsa vsc vse vsn vsp vss vst vsv vta vtc vte vts vtt vtv vva vvc vvs vvt vvv