-er a-a a-t aaa aad aae aag aan aap aar aas aat ad- ada add ade adg adn adp adr ads adt aea aed aee aeg aen aep aer aes aet ag- aga agd age agg agn agp agr ags agt an- ana and ane ang ann anp anr ans ant ap- apa apd ape apg apn app apr aps apt ar- ara ard are arg arn arp arr ars art as- asa asd ase asg asn asp asr ass ast at- ata atd ate atg atn atp atr ats att daa dad dae dag dan dap dar das dat dda ddd dde ddg ddn ddp ddr dds ddt de- dea ded dee deg den dep der des det dga dgd dge dgg dgn dgp dgr dgs dgt dna dnd dne dng dnn dnp dnr dns dnt dpa dpd dpe dpg dpn dpp dpr dps dpt dra drd dre drg drn drp drr drs drt dsa dsd dse dsg dsn dsp dsr dss dst dta dtd dte dtg dtn dtp dtr dts dtt eaa ead eae eag ean eap ear eas eat ed- eda edd ede edg edn edp edr eds edt eea eed eee eeg een eep eer ees eet ega egd ege egg egn egp egr egs egt en- ena end ene eng enn enp enr ens ent ep- epa epd epe epg epn epp epr eps ept era erd ere erg ern erp err ers ert es- esa esd ese esg esn esp esr ess est eta etd ete etg etn etp etr ets ett g-d g-p gaa gad gae gag gan gap gar gas gat gda gdd gde gdn gdp gdr gds gdt ge- gea ged gee geg gen gep ger ges get gga ggd ggg ggn ggp ggr ggs ggt gna gnd gne gnn gnp gnr gns gnt gpa gpd gpe gpg gpn gpp gpr gps gpt gra grd gre grg grn grp grr grs grt gsa gsd gse gsg gsn gsp gsr gss gst gta gtd gte gtg gtn gtp gtr gts gtt naa nad nae nag nan nap nar nas nat nda ndd nde ndg ndn ndp ndr nds ndt ne- nea ned nee neg nen nep ner nes net nga ngd nge ngg ngn ngp ngs ngt nna nne nng nnn nnp nns nnt npa npd npe npg npn npp npr nps npt nra nrd nre nrg nrn nrp nrr nrs nrt nsa nsd nse nsg nsn nsp nsr nss nst nta ntd nte ntg ntn ntp ntr nts ntt p-p paa pad pae pag pan pap par pas pat pda pdd pde pdg pdn pdp pdr pds pdt pea ped pee peg pen pep per pes pet pga pgd pge pgg pgn pgp pgr pgs pgt pn- pna pnd pne png pnn pnp pnr pns pnt ppa ppd ppe ppg ppn ppp ppr pps ppt pra prd pre prg prn prp prr prs prt ps- psa psd pse psg psn psp psr pss pst pt- pta ptd pte ptg ptn ptp ptr pts ptt ra- raa rad rae rag ran rap rar ras rat rda rdd rde rdg rdn rdp rdr rds rdt re- rea red ree reg ren rep rer res ret rga rgd rge rgg rgn rgp rgr rgs rgt rna rnd rng rnn rnp rnr rns rnt rpa rpd rpe rpg rpn rpp rpr rps rpt rra rrd rrg rrn rrp rrr rrs rrt rsa rsd rse rsg rsn rsp rsr rss rst rta rtd rte rtg rtn rtp rtr rts rtt saa sad sae sag san sap sar sas sat sda sdd sde sdg sdn sdp sdr sds sdt se- sea sed see seg sen sep ser ses set sga sgd sge sgg sgn sgp sgr sgs sgt sna snd sne sng snn snp snr sns snt spa spd spe spg spn spp spr sps spt sr- sra srd sre srg srn srp srr srs srt ss- ssa ssd sse ssg ssn ssp ssr sss sst sta std ste stg stn stp str sts stt taa tad tae tag tan tap tar tas tat tda tdd tde tdg tdn tdp tdr tds tdt te- tea ted tee teg ten tep ter tes tet tga tge tgg tgn tgp tgr tgs tgt tna tnd tne tng tnn tnp tnr tns tnt tpa tpd tpe tpg tpn tpp tpr tps tpt tra trd tre trg trn trp trr trs trt tsa tsd tse tsg tsn tsp tsr tss tst tta ttd tte ttg ttn ttp ttr tts ttt