a-a a-z aaa aan aao aap aar aay aaz an- ana ann ano anp anr any anz aoa aon aoo aop aor ap- apa apn apo app apr apy ar- ara arn aro arp arr ary arz ay- aya ayn ayo ayp ayr ayz az- aza azn azo azp azy azz naa nan nao nap nar nay naz nna nnn nno nnp nnz no- noa non noo nop nor noy noz npa npn npo npp npr npz nra nrn nro nrp nrr nry nrz nya nyn nyo nyp nyy nzo nzp nzz oaa oan oao oap oar on- ona onn ono onp onr ony oo- ooa oon ooo oop oor op- opa opn opo opp opr opy or- ora orn oro orp orr ory orz oya oyo oza ozo ozz p-p paa pan pao pap par pay paz pn- pna pnn pno pnp pnr pny poa pon poo pop por poy poz ppa ppn ppo ppp ppr ppz pra prn pro prp prr pry prz py- pya pyn pyo pyr pzp ra- raa ran rao rap rar ray raz rna rnn rno rnp rnr rny rnz roa ron roo rop ror roy roz rpa rpn rpo rpp rpr rpz rra rrn rrp rrr ry- rya ryn ryo ryr ryy ryz rza rzo rzy yaa yan yao yap yar yay yaz yna ynn ynp yny yon yoo yop yor yoy ypa ypo yra yrn yro yrp yyy yyz yzr yzy zaa zan zao zap zar zay zaz znn zno znp zo- zoa zon zoo zor zpo zpp zpr zro zrp zzr zzy zzz