-er a-a aaa aad aae aag aak aan aar aas ad- ada add ade adg adk adn adr ads aea aed aee aeg aek aen aer aes ag- aga agd age agg agk agn agr ags aka akd ake akg akk akn akr aks an- ana and ane ang ank ann anr ans ar- ara ard are arg ark arn arr ars as- asa asd ase asg ask asn asr ass daa dad dae dag dak dan dar das dda ddd dde ddg ddk ddn ddr dds de- dea ded dee deg dek den der des dga dgd dge dgg dgk dgn dgr dgs dka dke dkg dkk dkr dks dna dnd dne dng dnk dnn dnr dns dra drd dre drg drk drn drr drs dsa dsd dse dsg dsk dsn dsr dss eaa ead eae eag eak ean ear eas ed- eda edd ede edg edk edn edr eds eea eed eee eeg eek een eer ees ega egd ege egg egn egr egs eka ekd eke ekg ekr eks en- ena end ene eng enk enn enr ens era erd ere erg erk ern err ers es- esa esd ese esg esk esn esr ess g-d gaa gad gae gag gak gan gar gas gda gdd gde gdk gdn gdr gds ge- gea ged gee geg gek gen ger ges gga ggd ggg ggn ggr ggs gka gkd gkn gks gna gnd gne gnn gnr gns gra grd gre grg grk grn grr grs gsa gsd gse gsg gsk gsn gsr gss ka- kaa kad kae kag kak kan kar kas kda kde kdg kdk kdr kds ke- kea ked kee keg kek ken ker kes kga kgd kgs kke kkk kkn kkr kks kn- kna knd kne kng knk knn knr kra krd krg krk krn krr krs ksa ksd kse ksg ksk ksn ksr kss naa nad nae nag nak nan nar nas nda ndd nde ndg ndk ndn ndr nds ne- nea ned nee neg nek nen ner nes nga ngd nge ngg ngk ngn ngs nka nke nkk nkn nkr nks nna nne nng nnk nnn nns nra nrd nre nrg nrk nrn nrr nrs nsa nsd nse nsg nsk nsn nsr nss ra- raa rad rae rag rak ran rar ras rda rdd rde rdg rdn rdr rds re- rea red ree reg rek ren rer res rga rgd rge rgg rgk rgn rgr rgs rke rkg rkk rks rna rnd rng rnn rnr rns rra rrd rrg rrk rrn rrr rrs rsa rsd rse rsg rsk rsn rsr rss saa sad sae sag sak san sar sas sda sdd sde sdg sdk sdn sdr sds se- sea sed see seg sek sen ser ses sga sgd sge sgg sgk sgn sgr sgs sk- ska skd ske skg skk skr sks sna snd sne sng snk snn snr sns sr- sra srd sre srg srk srn srr srs ss- ssa ssd sse ssg ssk ssn ssr sss