a-a a-t a-z aaa aad aan aao aap aat aaz ad- ada add adn ado adp adt adz an- ana and ann ano anp ant anz aoa aod aon aoo aop aot ap- apa apd apn apo app apt at- ata atd atn ato atp att atz az- aza azd azn azo azp azt azz daa dad dan dao dap dat daz dda ddd ddn ddo ddp ddt ddz dna dnd dnn dno dnp dnt dnz doa dod don doo dop dot doz dpa dpd dpn dpo dpp dpt dpz dta dtd dtn dto dtp dtt dtz dza dzd dzo dzp naa nad nan nao nap nat naz nda ndd ndn ndo ndp ndt nna nnn nno nnp nnt nnz no- noa nod non noo nop not noz npa npd npn npo npp npt npz nta ntd ntn nto ntp ntt ntz nzd nzo nzp nzz oaa oad oan oao oap oat oda odd odn odo odp odt on- ona ond onn ono onp ont oo- ooa ood oon ooo oop oot op- opa opd opn opo opp opt ot- ota otd otn oto otp ott otz oza ozo ozt ozz p-p paa pad pan pao pap pat paz pda pdd pdn pdo pdp pdt pdz pn- pna pnd pnn pno pnp pnt poa pod pon poo pop pot poz ppa ppd ppn ppo ppp ppt ppz pt- pta ptd ptn pto ptp ptt ptz pzp pzt taa tad tan tao tap tat taz tda tdd tdn tdo tdp tdt tna tnd tnn tno tnp tnt tnz to- toa tod ton too top tot toz tpa tpd tpn tpo tpp tpt tpz tta ttd ttn tto ttp ttt tza tzd zaa zad zan zao zap zat zaz zdt znd znn zno znp zo- zoa zod zon zoo zot zpo zpp zpt zta zzt zzz