-er a-a a-i aaa aad aae aag aai aap aar aas ad- ada add ade adg adi adp adr ads aea aed aee aeg aei aep aer aes ag- aga agd age agg agi agp agr ags ai- aia aid aie aig aii aip air ais ap- apa apd ape apg api app apr aps ar- ara ard are arg ari arp arr ars as- asa asd ase asg asi asp asr ass daa dad dae dag dai dap dar das dda ddd dde ddg ddi ddp ddr dds de- dea ded dee deg dei dep der des dga dgd dge dgg dgi dgp dgr dgs di- dia did die dig dii dip dir dis dpa dpd dpe dpg dpi dpp dpr dps dra drd dre drg dri drp drr drs dsa dsd dse dsg dsi dsp dsr dss eaa ead eae eag eai eap ear eas ed- eda edd ede edg edi edp edr eds eea eed eee eeg eep eer ees ega egd ege egg egi egp egr egs eia eid eie eig eii eip eir eis ep- epa epd epe epg epi epp epr eps era erd ere erg eri erp err ers es- esa esd ese esg esi esp esr ess g-d g-p gaa gad gae gag gai gap gar gas gda gdd gde gdi gdp gdr gds ge- gea ged gee geg gei gep ger ges gga ggd ggg ggi ggp ggr ggs gia gid gie gig gii gip gir gis gpa gpd gpe gpg gpi gpp gpr gps gra grd gre grg gri grp grr grs gsa gsd gse gsg gsi gsp gsr gss i-d ia- iaa iad iae iag iai iap iar ias ida idd ide idg idi idp idr ids ie- iea ied iee ieg iei iep ier ies iga igd ige igg igi igp igr igs iia iid iie iii iip iir iis ipa ipd ipe ipg ipi ipp ipr ips ir- ira ird ire irg iri irp irr irs is- isa isd ise isg isi isp isr iss p-p paa pad pae pag pai pap par pas pda pdd pde pdg pdi pdp pdr pds pea ped pee peg pei pep per pes pga pgd pge pgg pgi pgp pgr pgs pia pid pie pig pii pip pir pis ppa ppd ppe ppg ppi ppp ppr pps pra prd pre prg pri prp prr prs ps- psa psd pse psg psi psp psr pss ra- raa rad rae rag rai rap rar ras rda rdd rde rdg rdi rdp rdr rds re- rea red ree reg rei rep rer res rga rgd rge rgg rgi rgp rgr rgs ria rid rie rig rii rip rir ris rpa rpd rpe rpg rpi rpp rpr rps rra rrd rrg rri rrp rrr rrs rsa rsd rse rsg rsi rsp rsr rss saa sad sae sag sai sap sar sas sda sdd sde sdg sdi sdp sdr sds se- sea sed see seg sei sep ser ses sga sgd sge sgg sgi sgp sgr sgs sia sid sie sig sii sip sir sis spa spd spe spg spi spp spr sps sr- sra srd sre srg sri srp srr srs ss- ssa ssd sse ssg ssi ssp ssr sss