-er a-a aaa aad aae aaf aag aao aap aar aas ad- ada add ade adf adg ado adp adr ads aea aed aee aef aeg aeo aep aer aes af- afa afd afe aff afg afo afp afr afs ag- aga agd age agf agg ago agp agr ags aoa aod aoe aof aog aoo aop aor aos ap- apa apd ape apf apg apo app apr aps ar- ara ard are arf arg aro arp arr ars as- asa asd ase asf asg aso asp asr ass daa dad dae daf dag dao dap dar das dda ddd dde ddf ddg ddo ddp ddr dds de- dea ded dee def deg deo dep der des dfa dfd dfe dff dfg dfo dfp dfr dfs dga dgd dge dgf dgg dgp dgr dgs doa dod doe dof dog doo dop dor dos dpa dpd dpe dpf dpg dpo dpp dpr dps dra drd dre drg dro drp drr drs dsa dsd dse dsf dsg dso dsp dsr dss eaa ead eae eaf eag eao eap ear eas ed- eda edd ede edf edg edo edp edr eds eea eed eee eef eeg eeo eep eer ees ef- efa efd efe eff efg efo efp efr efs ega egd ege egf egg ego egp egr egs eo- eoa eod eoe eof eog eoo eop eor eos ep- epa epd epe epf epg epo epp epr eps era erd ere erf erg ero erp err ers es- esa esd ese esf esg eso esp esr ess faa fad fae faf fag fao fap far fas fda fdd fde fdf fdg fdo fdp fdr fds fea fed fee fef feg feo fep fer fes ffa ffd ffe fff ffg ffo ffp ffr ffs fga fgd fge fgf fgg fgp fgr fgs foa foe fof fog foo fop for fos fpa fpd fpe fpg fpo fpp fpr fps fra frd fre frf frg fro frp frr frs fsa fsd fse fsf fsg fso fsp fsr fss g-d g-p gaa gad gae gaf gag gao gap gar gas gda gdd gde gdf gdo gdp gdr gds ge- gea ged gee gef geg geo gep ger ges gfa gfd gfe gff gfo gfp gfr gfs gga ggd ggg ggo ggp ggr ggs goa god goe gof gog goo gop gor gos gpa gpd gpe gpf gpg gpo gpp gpr gps gra grd gre grf grg gro grp grr grs gsa gsd gse gsf gsg gso gsp gsr gss oaa oad oae oaf oag oao oap oar oas oda odd ode odf odg odo odp odr ods oea oed oee oef oeg oeo oep oer oes of- ofa ofd ofe off ofg ofo ofp ofr ofs oga ogd oge ogf ogg ogo ogp ogs oo- ooa ood oof oog ooo oop oor oos op- opa opd ope opf opg opo opp opr ops or- ora ord ore orf org oro orp orr ors os- osa osd ose osf osg oso osp osr oss p-p paa pad pae paf pag pao pap par pas pda pdd pde pdf pdg pdo pdp pdr pds pea ped pee pef peg peo pep per pes pfa pfd pfe pff pfg pfo pfp pfr pfs pga pgd pge pgf pgg pgo pgp pgr pgs poa pod poe pof pog poo pop por pos ppa ppd ppe ppf ppg ppo ppp ppr pps pra prd pre prf prg pro prp prr prs ps- psa psd pse psf psg pso psp psr pss ra- raa rad rae raf rag rao rap rar ras rda rdd rde rdf rdg rdo rdp rdr rds re- rea red ree ref reg reo rep rer res rfa rfd rfe rff rfg rfo rfp rfr rfs rga rgd rge rgf rgg rgo rgp rgr rgs roa rod roe rof rog roo rop ror ros rpa rpd rpe rpf rpg rpo rpp rpr rps rra rrd rrf rrg rrp rrr rrs rsa rsd rse rsf rsg rso rsp rsr rss saa sad sae saf sag sao sap sar sas sda sdd sde sdf sdg sdo sdp sdr sds se- sea sed see sef seg seo sep ser ses sfa sfd sfe sff sfg sfo sfp sfr sfs sga sgd sge sgf sgg sgo sgp sgr sgs soa sod soe sof sog soo sop sor sos spa spd spe spf spg spo spp spr sps sr- sra srd sre srf srg sro srp srr srs ss- ssa ssd sse ssf ssg sso ssp ssr sss