-er a-a a-z aaa aae aah aak aao aar aav aaz aea aee aeh aek aeo aer aev aez aha ahe ahh ahk aho ahr ahv ahz aka ake akh akk ako akr akv aoa aoe aoh aok aoo aor aov ar- ara are arh ark aro arr arv arz av- ava ave avh avk avo avr avz az- aza aze azo azz eaa eae eah eak eao ear eav eaz eea eee eek eeo eer eev eha ehe ehh eho ehr ehv eka eke ekh eko ekr ekv eo- eoa eoe eoh eok eoo eor era ere erh erk ero err erv erz eva eve evh evo evr evv eze ezh ezo ezr ezz haa hae hah hak hao har hav haz he- hea hee heh hek heo her hev hez hha hhe hhh hhk hho hhr hhv hhz hka hkh hkk hko hkr hoa hoe hoh hok hoo hor hov hr- hra hre hrh hrk hro hrr hrv hrz hv- hva hvk hvo hvr hvv hze hzo k-z ka- kaa kae kah kak kao kar kav kaz ke- kea kee keh kek keo ker kev kez kha khe khh khk kho khr khv khz kke kkh kkk kkr kkv koa koe koh kok koo kor koz kra krk kro krr krv kva kvh kvk kvo kvr kvv kzo oaa oae oah oak oao oar oav oea oee oeh oeo oer oha ohe ohh oho ohr oka oke okk oko okr oo- ooa ooh ook ooo oor oov or- ora ore orh ork oro orr orv orz ov- ova ove ovh ovo ovv oza oze ozo ozz ra- raa rae rah rak rao rar rav raz re- rea ree reh rek reo rer rev rez rh- rha rhe rhh rho rhr rhv rke rkk rko rkv rkz roa roe roh rok roo ror rov roz rra rrh rrk rrr rva rve rvh rvo rvr rvv rza rze rzo v-a v-e vaa vae vah vak vao var vav vaz vea vee veh vek veo ver vez vh- vha vhe vho vka voa voe voh vok voo vor vov voz vra vre vrh vrk vrr vva vvo vvr vvv vvz zaa zah zak zao zar zav zaz zea zee zeh zek zeo zer zev zez zha zhe zho zhr zka zo- zoa zoe zok zoo zor zrh zro zzr zzz