-er a-a a-i aaa aad aae aag aai aao aap aar ad- ada add ade adg adi ado adp adr aea aed aee aeg aei aeo aep aer ag- aga agd age agg agi ago agp agr ai- aia aid aie aig aii aio aip air aoa aod aoe aog aoi aoo aop aor ap- apa apd ape apg api apo app apr ar- ara ard are arg ari aro arp arr daa dad dae dag dai dao dap dar dda ddd dde ddg ddi ddo ddp ddr de- dea ded dee deg dei deo dep der dga dgd dge dgg dgi dgp dgr di- dia did die dig dii dio dip dir doa dod doe dog doi doo dop dor dpa dpd dpe dpg dpi dpo dpp dpr dra drd dre drg dri dro drp drr eaa ead eae eag eai eao eap ear ed- eda edd ede edg edi edo edp edr eea eed eee eeg eeo eep eer ega egd ege egg egi ego egp egr eia eid eie eig eii eio eip eir eo- eoa eod eoe eog eoi eoo eop eor ep- epa epd epe epg epi epo epp epr era erd ere erg eri ero erp err g-d g-p gaa gad gae gag gai gao gap gar gda gdd gde gdi gdo gdp gdr ge- gea ged gee geg gei geo gep ger gga ggd ggg ggi ggo ggp ggr gia gid gie gig gii gio gip gir goa god goe gog goi goo gop gor gpa gpd gpe gpg gpi gpo gpp gpr gra grd gre grg gri gro grp grr i-d ia- iaa iad iae iag iai iao iap iar ida idd ide idg idi ido idp idr ie- iea ied iee ieg iei iep ier iga igd ige igg igi igo igp igr iia iid iie iii iio iip iir io- ioa iod ioe iog ioi ioo iop ior ipa ipd ipe ipg ipi ipo ipp ipr ir- ira ird ire irg iri iro irp irr o-i oaa oad oae oag oai oao oap oar oda odd ode odg odi odo odp odr oea oed oee oeg oei oeo oep oer oga ogd oge ogg ogi ogo ogp oia oid oie oii oio oip oir oo- ooa ood oog ooi ooo oop oor op- opa opd ope opg opi opo opp opr or- ora ord ore org ori oro orp orr p-p paa pad pae pag pai pao pap par pda pdd pde pdg pdi pdo pdp pdr pea ped pee peg pei peo pep per pga pgd pge pgg pgi pgo pgp pgr pia pid pie pig pii pio pip pir poa pod poe pog poi poo pop por ppa ppd ppe ppg ppi ppo ppp ppr pra prd pre prg pri pro prp prr ra- raa rad rae rag rai rao rap rar rda rdd rde rdg rdi rdo rdp rdr re- rea red ree reg rei reo rep rer rga rgd rge rgg rgi rgo rgp rgr ria rid rie rig rii rio rip rir roa rod roe rog roi roo rop ror rpa rpd rpe rpg rpi rpo rpp rpr rra rrd rrg rri rrp rrr