a-a a-c aaa aac aag aah aak aao aar aav ac- aca acc acg ach ack aco acr acv ag- aga agc agg agh agk ago agr agv aha ahc ahg ahh ahk aho ahr ahv aka akc akg akh akk ako akr akv aoa aoc aog aoh aok aoo aor aov ar- ara arc arg arh ark aro arr arv av- ava avc avg avh avk avo avr c-- caa cac cag cah cak cao car cav cca ccc ccg cch cck cco ccr ccv cga cgc cgg cgh cgo cgr cgv ch- cha chc chg chh chk cho chr chv cka ckc ckh cko co- coa coc cog coh cok coo cor cov cra crc crg crh crk cro crr crv cva cvc cvg cvh cvk cvo cvr cvv gaa gac gag gah gak gao gar gav gca gcc gcg gch gck gco gcr gga ggc ggg ggh ggo ggr ggv gha ghc ghg ghh gho ghr gka gkh gko goa goc gog goh gok goo gor gov gra grc grg grh grk gro grr grv gva gvc gvg gvh gvk gvo gvr haa hac hag hah hak hao har hav hca hcc hcg hch hck hco hcr hcv hga hgc hgg hgh hgk hgo hgr hgv hha hhc hhg hhh hhk hho hhr hhv hka hkg hkh hkk hko hkr hoa hoc hog hoh hok hoo hor hov hr- hra hrc hrg hrh hrk hro hrr hrv hv- hva hvc hvg hvk hvo hvr hvv ka- kaa kac kag kah kak kao kar kav kca kcc kcg kch kck kcr kga kgc kgh kgo kgv kha khh khk kho khr khv kkc kkh kkk kkr kkv koa koc kog koh kok koo kor kra krc krg krk kro krr krv kva kvh kvk kvo kvr kvv oaa oac oag oah oak oao oar oav oc- oca occ ocg och ock oco ocr ocv oga ogc ogg ogh ogo oha ohc ohg ohh oho ohr oka okc okg okk oko okr oo- ooa ooc oog ooh ook ooo oor oov or- ora orc org orh ork oro orr orv ov- ova ovc ovh ovo ovv ra- raa rac rag rah rak rao rar rav rca rcc rcg rch rco rcr rcv rga rgc rgg rgh rgk rgo rgr rgv rh- rha rhc rhg rhh rho rhr rhv rkc rkg rkk rko rkv roa roc rog roh rok roo ror rov rra rrc rrg rrh rrk rrr rva rvc rvg rvh rvo rvr rvv v-a vaa vac vag vah vak vao var vav vca vcc vch vco vcr vga vgc vgg vgh vgo vgr vh- vha vhc vho vka vkg voa voc vog voh vok voo vor vov vra vrc vrg vrh vrk vrr vva vvc vvg vvo vvr vvv