-er a-a a-t aaa aad aae aaf aag aak aar aas aat ad- ada add ade adf adg adk adr ads adt aea aed aee aef aeg aek aer aes aet af- afa afd afe aff afg afk afr afs aft ag- aga agd age agf agg agk agr ags agt aka akd ake akg akk akr aks ar- ara ard are arf arg ark arr ars art as- asa asd ase asf asg ask asr ass ast at- ata atd ate atf atg atr ats att daa dad dae daf dag dak dar das dat dda ddd dde ddf ddg ddk ddr dds ddt de- dea ded dee def deg dek der des det dfa dfd dfe dff dfg dfk dfr dfs dft dga dgd dge dgf dgg dgk dgr dgs dgt dka dke dkg dkk dkr dks dkt dra drd dre drg drk drr drs drt dsa dsd dse dsf dsg dsk dsr dss dst dta dtd dte dtf dtg dtk dtr dts dtt eaa ead eae eaf eag eak ear eas eat ed- eda edd ede edf edg edk edr eds edt eea eed eee eef eeg eek eer ees eet ef- efa efd efe eff efg efr efs eft ega egd ege egf egg egr egs egt eka ekd eke ekf ekg ekr eks ekt era erd ere erf erg erk err ers ert es- esa esd ese esf esg esk esr ess est eta etd ete etf etg etk etr ets ett faa fad fae faf fag fak far fas fat fda fdd fde fdf fdg fdk fdr fds fdt fea fed fee fef feg fek fer fes fet ffa ffd ffe fff ffg ffk ffr ffs fft fga fgd fge fgf fgg fgr fgs fgt fka fkf fkg fkk fkt fra frd fre frf frg frk frr frs frt fsa fsd fse fsf fsg fsk fsr fss fst fta ftd fte ftf ftg ftk ftr fts ftt g-d gaa gad gae gaf gag gak gar gas gat gda gdd gde gdf gdk gdr gds gdt ge- gea ged gee gef geg gek ger ges get gfa gfd gfe gff gfk gfr gfs gft gga ggd ggg ggr ggs ggt gka gkd gks gkt gra grd gre grf grg grk grr grs grt gsa gsd gse gsf gsg gsk gsr gss gst gta gtd gte gtf gtg gtk gtr gts gtt k-t ka- kaa kad kae kaf kag kak kar kas kat kda kde kdf kdg kdk kdr kds kdt ke- kea ked kee kef keg kek ker kes ket kfa kfd kff kfg kfs kga kgd kgf kgs kke kkk kkr kks kkt kra krd krf krg krk krr krs krt ksa ksd kse ksf ksg ksk ksr kss kst kta kte ktf ktg ktk ktr kts ktt ra- raa rad rae raf rag rak rar ras rat rda rdd rde rdf rdg rdr rds rdt re- rea red ree ref reg rek rer res ret rfa rfd rfe rff rfg rfk rfr rfs rft rga rgd rge rgf rgg rgk rgr rgs rgt rke rkf rkg rkk rks rkt rra rrd rrf rrg rrk rrr rrs rrt rsa rsd rse rsf rsg rsk rsr rss rst rta rtd rte rtf rtg rtk rtr rts rtt saa sad sae saf sag sak sar sas sat sda sdd sde sdf sdg sdk sdr sds sdt se- sea sed see sef seg sek ser ses set sfa sfd sfe sff sfg sfk sfr sfs sft sga sgd sge sgf sgg sgk sgr sgs sgt sk- ska skd ske skf skg skk skr sks skt sr- sra srd sre srf srg srk srr srs srt ss- ssa ssd sse ssf ssg ssk ssr sss sst sta std ste stf stg stk str sts stt taa tad tae taf tag tak tar tas tat tda tdd tde tdf tdg tdk tdr tds tdt te- tea ted tee tef teg tek ter tes tet tfa tfd tfe tff tfg tfk tfr tfs tft tga tge tgf tgg tgk tgr tgs tgt tka tke tkg tkk tkr tks tkt tra trd tre trf trg trk trr trs trt tsa tsd tse tsf tsg tsk tsr tss tst tta ttd tte ttf ttg ttk ttr tts ttt