-er a-a a-c aaa aac aad aae aag aak aao aap aar aav ac- aca acc acd ace acg ack aco acp acr acv ad- ada adc add ade adg adk ado adp adr adv aea aec aed aee aeg aek aeo aep aer aev ag- aga agc agd age agg agk ago agp agr agv aka akc akd ake akg akk ako akp akr akv aoa aoc aod aoe aog aok aoo aop aor aov ap- apa apc apd ape apg apk apo app apr apv ar- ara arc ard are arg ark aro arp arr arv av- ava avc avd ave avg avk avo avp avr c-- caa cac cad cae cag cak cao cap car cav cca ccc ccd cce ccg cck cco ccp ccr ccv cda cdc cdd cde cdg cdk cdo cdp cdr cdv ce- cea cec ced cee ceg cek ceo cep cer cev cga cgc cgd cge cgg cgo cgp cgr cgv cka ckc ckd cko co- coa coc cod coe cog cok coo cop cor cov cpa cpc cpd cpe cpg cpk cpo cpp cpr cpv cra crc crd cre crg crk cro crp crr crv cva cvc cvd cve cvg cvk cvo cvp cvr cvv daa dac dad dae dag dak dao dap dar dav dca dcc dcd dce dcg dck dco dcp dcr dcv dda ddc ddd dde ddg ddk ddo ddp ddr de- dea dec ded dee deg dek deo dep der dev dga dgc dgd dge dgg dgk dgp dgr dka dkc dke dkg dkk dko dkp dkr doa doc dod doe dog dok doo dop dor dov dpa dpc dpd dpe dpg dpk dpo dpp dpr dpv dra drc drd dre drg drk dro drp drr drv dva dvc dvd dve dvg dvk dvp dvr eaa eac ead eae eag eak eao eap ear eav ec- eca ecc ecd ece ecg eck eco ecr ecv ed- eda edc edd ede edg edk edo edp edr eea eec eed eee eeg eek eeo eep eer eev ega egc egd ege egg ego egp egr eka ekc ekd eke ekg eko ekp ekr ekv eo- eoa eoc eod eoe eog eok eoo eop eor ep- epa epc epd epe epg epo epp epr era erc erd ere erg erk ero erp err erv eva evc evd eve evg evo evp evr evv g-d g-p gaa gac gad gae gag gak gao gap gar gav gca gcc gcd gce gcg gck gco gcp gcr gda gdc gdd gde gdk gdo gdp gdr gdv ge- gea gec ged gee geg gek geo gep ger gev gga ggc ggd ggg ggo ggp ggr ggv gka gkd gko gkp goa goc god goe gog gok goo gop gor gov gpa gpc gpd gpe gpg gpk gpo gpp gpr gra grc grd gre grg grk gro grp grr grv gva gvc gvd gve gvg gvk gvo gvp gvr ka- kaa kac kad kae kag kak kao kap kar kav kca kcc kcd kce kcg kck kcp kcr kda kdc kde kdg kdk kdo kdp kdr ke- kea kec ked kee keg kek keo kep ker kev kga kgc kgd kgo kgp kgv kkc kke kkk kkp kkr kkv koa koc kod koe kog kok koo kop kor kpa kpc kpd kpe kpk kpo kpp kpr kpv kra krc krd krg krk kro krp krr krv kva kvk kvo kvp kvr kvv oaa oac oad oae oag oak oao oap oar oav oc- oca occ ocd ocg ock oco ocp ocr ocv oda odc odd ode odg odo odp odr odv oea oec oed oee oeg oeo oep oer oga ogc ogd oge ogg ogo ogp oka okc okd oke okg okk oko okp okr oo- ooa ooc ood oog ook ooo oop oor oov op- opa opc opd ope opg opk opo opp opr opv or- ora orc ord ore org ork oro orp orr orv ov- ova ovc ovd ove ovo ovp ovv p-p paa pac pad pae pag pak pao pap par pav pca pcc pcd pce pcg pck pco pcp pcr pcv pda pdc pdd pde pdg pdk pdo pdp pdr pdv pea pec ped pee peg pek peo pep per pev pga pgc pgd pge pgg pgk pgo pgp pgr pgv pka pkc pkd pke pkg pko pkp pkr poa poc pod poe pog pok poo pop por pov ppa ppc ppd ppe ppg ppk ppo ppp ppr ppv pra prc prd pre prg prk pro prp prr prv pva pvc pvd pve pvg pvk pvo pvp pvr pvv ra- raa rac rad rae rag rak rao rap rar rav rca rcc rcd rce rcg rco rcp rcr rcv rda rdc rdd rde rdg rdo rdp rdr rdv re- rea rec red ree reg rek reo rep rer rev rga rgc rgd rge rgg rgk rgo rgp rgr rgv rkc rke rkg rkk rko rkp rkv roa roc rod roe rog rok roo rop ror rov rpa rpc rpd rpe rpg rpk rpo rpp rpr rpv rra rrc rrd rrg rrk rrp rrr rva rvc rvd rve rvg rvo rvp rvr rvv v-a v-e vaa vac vad vae vag vak vao vap var vav vca vcc vcd vce vco vcp vcr vdc vdd vde vdg vdk vdo vdp vdr vdv vea vec ved vee veg vek veo vep ver vga vgc vgg vgo vgp vgr vka vkg vkp voa voc vod voe vog vok voo vop vor vov vpa vpc vpd vpe vpg vpk vpo vpp vpr vra vrc vrd vre vrg vrk vrp vrr vva vvc vvg vvo vvr vvv