a-a a-z aaa aae aag aao aap aaz aea aee aeg aeo aep aez ag- aga age agg ago agp agz aoa aoe aog aoo aop ap- apa ape apg apo app az- aza aze azg azo azp azz eaa eae eag eao eap eaz eea eee eeg eeo eep ega ege egg ego egp eo- eoa eoe eog eoo eop ep- epa epe epg epo epp epz eze ezo ezz g-p gaa gae gag gao gap gaz ge- gea gee geg geo gep gez gga ggg ggo ggp ggz goa goe gog goo gop goz gpa gpe gpg gpo gpp gpz gza gzo gzp oaa oae oag oao oap oea oee oeg oeo oep oga oge ogg ogo ogp oo- ooa oog ooo oop op- opa ope opg opo opp oza oze ozo ozz p-p paa pae pag pao pap paz pea pee peg peo pep pez pga pge pgg pgo pgp poa poe pog poo pop poz ppa ppe ppg ppo ppp ppz pzp z-g zaa zag zao zap zaz zea zee zeo zep zez zgg zo- zoa zoe zog zoo zpe zpg zpo zpp zzz