-er -up a-a a-b a-z aaa aab aae aag aap aar aau aaz ab- aba abb abe abg abp abr abu abz aea aeb aee aeg aep aer aeu aez ag- aga agb age agg agp agr agu agz ap- apa apb ape apg app apr apu ar- ara arb are arg arp arr aru arz au- aua aub aue aug aup aur auz az- aza azb aze azg azp azu azz b-p b-u baa bab bae bag bap bar bau baz bba bbb bbe bbg bbp bbr bbu be- bea beb bee beg bep ber beu bez bga bgb bge bgg bgp bgr bgu bgz bpa bpb bpe bpg bpp bpr bpu bra brb bre brg brp brr bru brz bua bub bue bug bup bur buu buz bza bze bzp bzr bzu bzz eaa eab eae eag eap ear eau eaz eba ebb ebe ebg ebp ebr ebu eea eeb eee eeg eep eer ega egb ege egg egp egr egu ep- epa epb epe epg epp epr epu epz era erb ere erg erp err eru erz eu- eua eub eue eug eup eur eze ezr ezz g-p gaa gab gae gag gap gar gau gaz gba gbe gbg gbp gbr gbu gbz ge- gea geb gee geg gep ger geu gez gga ggb ggg ggp ggr ggu ggz gpa gpb gpe gpg gpp gpr gpu gpz gra grb gre grg grp grr gru gu- gua gub gue gug gup gur guu guz gza gzp gzr gzu p-p paa pab pae pag pap par pau paz pba pbb pbe pbg pbp pbr pbu pbz pea peb pee peg pep per peu pez pga pgb pge pgg pgp pgr ppa ppb ppe ppg ppp ppr ppu ppz pra prb pre prg prp prr pru prz pua pub pue pug pup pur puu puz pzp ra- raa rab rae rag rap rar rau raz rba rbb rbe rbg rbp rbr rbu re- rea reb ree reg rep rer reu rez rga rgb rge rgg rgp rgr rpa rpb rpe rpg rpp rpr rpu rpz rra rrb rrg rrp rrr rru rua rub rue rug rup rur ruu ruz rza rzb rze ua- uaa uab uae uag uap uar uau uaz uba ubb ube ubg ubp ubr ubu uea ueb uee ueg uep uer uga ugb uge ugg ugp ugr ugu up- upa upb upe upg upp upr upu upz ur- ura urb ure urg urp urr uru urz uua uue uug uur uuu uza uzb uzu z-g zaa zab zag zap zar zaz zbb zbr zea zeb zee zep zer zez zgb zgg zpe zpg zpp zpr zpu zrp zub zug zur zuz zzr zzz