a-a a-z aaa aad aan aao aav aaz ad- ada add adn ado adv adz an- ana and ann ano anv anz aoa aod aon aoo aov av- ava avd avn avo avz az- aza azd azn azo azz daa dad dan dao dav daz dda ddd ddn ddo ddz dna dnd dnn dno dnz doa dod don doo dov doz dva dvd dvn dza dzd dzo naa nad nan nao nav naz nda ndd ndn ndo ndv nna nnn nno nnv nnz no- noa nod non noo nov noz nva nvd nvn nvv nzd nzo nzz oaa oad oan oao oav oda odd odn odo odv on- ona ond onn ono oo- ooa ood oon ooo oov ov- ova ovd ovo ovv oza ozo ozz v-a vaa vad van vao vav vaz vdd vdo vdv vn- vna vnd vno vnv voa vod von voo vov voz vva vvo vvv vvz vzn zaa zad zan zao zav zaz zdv znd znn zno zo- zoa zod zon zoo zzz