-er a-a a-c aaa aac aae aag aah aak aao aar aav ac- aca acc ace acg ach ack aco acr acv aea aec aee aeg aeh aek aeo aer aev ag- aga agc age agg agh agk ago agr agv aha ahc ahe ahg ahh ahk aho ahr ahv aka akc ake akg akh akk ako akr akv aoa aoc aoe aog aoh aok aoo aor aov ar- ara arc are arg arh ark aro arr arv av- ava avc ave avg avh avk avo avr c-- caa cac cae cag cah cak cao car cav cca ccc cce ccg cch cck cco ccr ccv ce- cea cec cee ceg ceh cek ceo cer cev cga cgc cge cgg cgh cgo cgr cgv ch- cha chc che chg chh chk cho chr chv cka ckc ckh cko co- coa coc coe cog coh cok coo cor cov cra crc cre crg crh crk cro crr crv cva cvc cve cvg cvh cvk cvo cvr cvv eaa eac eae eag eah eak eao ear eav ec- eca ecc ece ecg ech eck eco ecr ecv eea eec eee eeg eek eeo eer eev ega egc ege egg egh ego egr eha ehc ehe ehg ehh eho ehr ehv eka ekc eke ekg ekh eko ekr ekv eo- eoa eoc eoe eog eoh eok eoo eor era erc ere erg erh erk ero err erv eva evc eve evg evh evo evr evv gaa gac gae gag gah gak gao gar gav gca gcc gce gcg gch gck gco gcr ge- gea gec gee geg geh gek geo ger gev gga ggc ggg ggh ggo ggr ggv gha ghc ghe ghg ghh gho ghr gka gkh gko goa goc goe gog goh gok goo gor gov gra grc gre grg grh grk gro grr grv gva gvc gve gvg gvh gvk gvo gvr haa hac hae hag hah hak hao har hav hca hcc hce hcg hch hck hco hcr hcv he- hea hec hee heg heh hek heo her hev hga hgc hge hgg hgh hgk hgo hgr hgv hha hhc hhe hhg hhh hhk hho hhr hhv hka hkg hkh hkk hko hkr hoa hoc hoe hog hoh hok hoo hor hov hr- hra hrc hre hrg hrh hrk hro hrr hrv hv- hva hvc hvg hvk hvo hvr hvv ka- kaa kac kae kag kah kak kao kar kav kca kcc kce kcg kch kck kcr ke- kea kec kee keg keh kek keo ker kev kga kgc kgh kgo kgv kha khe khh khk kho khr khv kkc kke kkh kkk kkr kkv koa koc koe kog koh kok koo kor kra krc krg krk kro krr krv kva kvh kvk kvo kvr kvv oaa oac oae oag oah oak oao oar oav oc- oca occ ocg och ock oco ocr ocv oea oec oee oeg oeh oeo oer oga ogc oge ogg ogh ogo oha ohc ohe ohg ohh oho ohr oka okc oke okg okk oko okr oo- ooa ooc oog ooh ook ooo oor oov or- ora orc ore org orh ork oro orr orv ov- ova ovc ove ovh ovo ovv ra- raa rac rae rag rah rak rao rar rav rca rcc rce rcg rch rco rcr rcv re- rea rec ree reg reh rek reo rer rev rga rgc rge rgg rgh rgk rgo rgr rgv rh- rha rhc rhe rhg rhh rho rhr rhv rkc rke rkg rkk rko rkv roa roc roe rog roh rok roo ror rov rra rrc rrg rrh rrk rrr rva rvc rve rvg rvh rvo rvr rvv v-a v-e vaa vac vae vag vah vak vao var vav vca vcc vce vch vco vcr vea vec vee veg veh vek veo ver vga vgc vgg vgh vgo vgr vh- vha vhc vhe vho vka vkg voa voc voe vog voh vok voo vor vov vra vrc vre vrg vrh vrk vrr vva vvc vvg vvo vvr vvv