-er -ic a-a a-c a-i a-t aaa aac aad aae aag aai aan aar aas aat ac- aca acc acd ace acg aci acn acr acs act ad- ada adc add ade adg adi adn adr ads adt aea aec aed aee aeg aei aen aer aes aet ag- aga agc agd age agg agi agn agr ags agt ai- aia aic aid aie aig aii ain air ais ait an- ana anc and ane ang ani ann anr ans ant ar- ara arc ard are arg ari arn arr ars art as- asa asc asd ase asg asi asn asr ass ast at- ata atc atd ate atg ati atn atr ats att c-- caa cac cad cae cag cai can car cas cat cca ccc ccd cce ccg cci ccn ccr ccs cct cda cdc cdd cde cdg cdi cdn cdr cds cdt ce- cea cec ced cee ceg cei cen cer ces cet cga cgc cgd cge cgg cgi cgn cgr cgs cgt ci- cia cic cid cie cig cii cin cir cis cit cn- cna cnc cnd cne cng cni cnn cnr cns cnt cra crc crd cre crg cri crn crr crs crt csa csc csd cse csg csi csn csr css cst cta ctc ctd cte ctg cti ctn ctr cts ctt daa dac dad dae dag dai dan dar das dat dca dcc dcd dce dcg dci dcn dcr dcs dct dda ddc ddd dde ddg ddi ddn ddr dds ddt de- dea dec ded dee deg dei den der des det dga dgc dgd dge dgg dgi dgn dgr dgs dgt di- dia dic did die dig dii din dir dis dit dna dnc dnd dne dng dni dnn dnr dns dnt dra drc drd dre drg dri drn drr drs drt dsa dsc dsd dse dsg dsi dsn dsr dss dst dta dtc dtd dte dtg dti dtn dtr dts dtt eaa eac ead eae eag eai ean ear eas eat ec- eca ecc ecd ece ecg eci ecn ecr ecs ect ed- eda edc edd ede edg edi edn edr eds edt eea eec eed eee eeg een eer ees eet ega egc egd ege egg egi egn egr egs egt eia eic eid eie eig eii ein eir eis eit en- ena enc end ene eng eni enn enr ens ent era erc erd ere erg eri ern err ers ert es- esa esc esd ese esg esi esn esr ess est eta etc etd ete etg eti etn etr ets ett g-d gaa gac gad gae gag gai gan gar gas gat gca gcc gcd gce gcg gci gcn gcr gcs gct gda gdc gdd gde gdi gdn gdr gds gdt ge- gea gec ged gee geg gei gen ger ges get gga ggc ggd ggg ggi ggn ggr ggs ggt gia gic gid gie gig gii gin gir gis git gna gnc gnd gne gni gnn gnr gns gnt gra grc grd gre grg gri grn grr grs grt gsa gsc gsd gse gsg gsi gsn gsr gss gst gta gtc gtd gte gtg gti gtn gtr gts gtt i-d ia- iaa iac iad iae iag iai ian iar ias iat ica icc icd ice icg ici icn icr ics ict ida idc idd ide idg idi idn idr ids idt ie- iea iec ied iee ieg iei ien ier ies iet iga igc igd ige igg igi ign igr igs igt iia iic iid iie iii iin iir iis iit in- ina inc ind ine ing ini inn inr ins int ir- ira irc ird ire irg iri irn irr irs irt is- isa isc isd ise isg isi isn isr iss ist ita itc itd ite itg iti itn its itt n-i naa nac nad nae nag nai nan nar nas nat nca ncc ncd nce ncg nci ncn ncr ncs nct nda ndc ndd nde ndg ndi ndn ndr nds ndt ne- nea nec ned nee neg nei nen ner nes net nga ngc ngd nge ngg ngi ngn ngs ngt nia nic nid nie nig nii nin nir nis nit nna nnc nne nng nni nnn nns nnt nra nrc nrd nre nrg nri nrn nrr nrs nrt nsa nsc nsd nse nsg nsi nsn nsr nss nst nta ntc ntd nte ntg nti ntn ntr nts ntt ra- raa rac rad rae rag rai ran rar ras rat rca rcc rcd rce rcg rci rcn rcr rcs rct rda rdc rdd rde rdg rdi rdn rdr rds rdt re- rea rec red ree reg rei ren rer res ret rga rgc rgd rge rgg rgi rgn rgr rgs rgt ria ric rid rie rig rii rin rir ris rit rna rnc rnd rng rni rnn rnr rns rnt rra rrc rrd rrg rri rrn rrr rrs rrt rsa rsc rsd rse rsg rsi rsn rsr rss rst rta rtc rtd rte rtg rti rtn rtr rts rtt saa sac sad sae sag sai san sar sas sat sca scc scd sce scg sci scn scr scs sct sda sdc sdd sde sdg sdi sdn sdr sds sdt se- sea sec sed see seg sei sen ser ses set sga sgc sgd sge sgg sgi sgn sgr sgs sgt sia sic sid sie sig sii sin sir sis sit sna snc snd sne sng sni snn snr sns snt sr- sra src srd sre srg sri srn srr srs srt ss- ssa ssc ssd sse ssg ssi ssn ssr sss sst sta stc std ste stg sti stn str sts stt taa tac tad tae tag tai tan tar tas tat tca tcc tcd tce tcg tci tcn tcr tcs tct tda tdc tdd tde tdg tdi tdn tdr tds tdt te- tea tec ted tee teg tei ten ter tes tet tga tgc tge tgg tgi tgn tgr tgs tgt tia tic tid tie tig tii tin tir tis tit tna tnc tnd tne tng tni tnn tnr tns tnt tra trc