-er a-a aaa aad aae aag aao aap aar aas ad- ada add ade adg ado adp adr ads aea aed aee aeg aeo aep aer aes ag- aga agd age agg ago agp agr ags aoa aod aoe aog aoo aop aor aos ap- apa apd ape apg apo app apr aps ar- ara ard are arg aro arp arr ars as- asa asd ase asg aso asp asr ass daa dad dae dag dao dap dar das dda ddd dde ddg ddo ddp ddr dds de- dea ded dee deg deo dep der des dga dgd dge dgg dgp dgr dgs doa dod doe dog doo dop dor dos dpa dpd dpe dpg dpo dpp dpr dps dra drd dre drg dro drp drr drs dsa dsd dse dsg dso dsp dsr dss eaa ead eae eag eao eap ear eas ed- eda edd ede edg edo edp edr eds eea eed eee eeg eeo eep eer ees ega egd ege egg ego egp egr egs eo- eoa eod eoe eog eoo eop eor eos ep- epa epd epe epg epo epp epr eps era erd ere erg ero erp err ers es- esa esd ese esg eso esp esr ess g-d g-p gaa gad gae gag gao gap gar gas gda gdd gde gdo gdp gdr gds ge- gea ged gee geg geo gep ger ges gga ggd ggg ggo ggp ggr ggs goa god goe gog goo gop gor gos gpa gpd gpe gpg gpo gpp gpr gps gra grd gre grg gro grp grr grs gsa gsd gse gsg gso gsp gsr gss oaa oad oae oag oao oap oar oas oda odd ode odg odo odp odr ods oea oed oee oeg oeo oep oer oes oga ogd oge ogg ogo ogp ogs oo- ooa ood oog ooo oop oor oos op- opa opd ope opg opo opp opr ops or- ora ord ore org oro orp orr ors os- osa osd ose osg oso osp osr oss p-p paa pad pae pag pao pap par pas pda pdd pde pdg pdo pdp pdr pds pea ped pee peg peo pep per pes pga pgd pge pgg pgo pgp pgr pgs poa pod poe pog poo pop por pos ppa ppd ppe ppg ppo ppp ppr pps pra prd pre prg pro prp prr prs ps- psa psd pse psg pso psp psr pss ra- raa rad rae rag rao rap rar ras rda rdd rde rdg rdo rdp rdr rds re- rea red ree reg reo rep rer res rga rgd rge rgg rgo rgp rgr rgs roa rod roe rog roo rop ror ros rpa rpd rpe rpg rpo rpp rpr rps rra rrd rrg rrp rrr rrs rsa rsd rse rsg rso rsp rsr rss saa sad sae sag sao sap sar sas sda sdd sde sdg sdo sdp sdr sds se- sea sed see seg seo sep ser ses sga sgd sge sgg sgo sgp sgr sgs soa sod soe sog soo sop sor sos spa spd spe spg spo spp spr sps sr- sra srd sre srg sro srp srr srs ss- ssa ssd sse ssg sso ssp ssr sss