-er -ey a-a a-b aaa aab aae aag aap aar aas aay ab- aba abb abe abg abp abr abs aby aea aeb aee aeg aep aer aes aey ag- aga agb age agg agp agr ags agy ap- apa apb ape apg app apr aps apy ar- ara arb are arg arp arr ars ary as- asa asb ase asg asp asr ass asy ay- aya aye ayp ayr ays b-p baa bab bae bag bap bar bas bay bba bbb bbe bbg bbp bbr bbs bby be- bea beb bee beg bep ber bes bey bga bgb bge bgg bgp bgr bgs bpa bpb bpe bpg bpp bpr bps bpy bra brb bre brg brp brr brs bry bsa bsb bse bsg bsp bsr bss bsy by- bya bye byg byp byr bys eaa eab eae eag eap ear eas eba ebb ebe ebg ebp ebr ebs eby eea eeb eee eeg eep eer ees eey ega egb ege egg egp egr egs egy ep- epa epb epe epg epp epr eps era erb ere erg erp err ers ery es- esa esb ese esg esp esr ess esy eya eye eyp eyr eys g-p gaa gab gae gag gap gar gas gay gba gbe gbg gbp gbr gbs gby ge- gea geb gee geg gep ger ges gey gga ggb ggg ggp ggr ggs gpa gpb gpe gpg gpp gpr gps gra grb gre grg grp grr grs gry gsa gsb gse gsg gsp gsr gss gy- gya gyb gye gyp gyr gys p-p paa pab pae pag pap par pas pay pba pbb pbe pbg pbp pbr pbs pby pea peb pee peg pep per pes pey pga pgb pge pgg pgp pgr pgs pgy ppa ppb ppe ppg ppp ppr pps pra prb pre prg prp prr prs pry ps- psa psb pse psg psp psr pss psy py- pya pyb pye pyg pyr pys ra- raa rab rae rag rap rar ras ray rba rbb rbe rbg rbp rbr rbs re- rea reb ree reg rep rer res rey rga rgb rge rgg rgp rgr rgs rpa rpb rpe rpg rpp rpr rps rra rrb rrg rrp rrr rrs rsa rsb rse rsg rsp rsr rss ry- rya rye ryg ryr rys ryy saa sab sae sag sap sar sas say sba sbb sbe sbg sbp sbr sbs sby se- sea seb see seg sep ser ses sey sga sgb sge sgg sgp sgr sgs spa spb spe spg spp spr sps spy sr- sra srb sre srg srp srr srs sry ss- ssa ssb sse ssg ssp ssr sss sy- sya syb sye syg syp syr sys yaa yab yae yag yap yar yas yay ybe ybg ybp ybr ybs yby yea yeb yee yeg yep yer yes yey yga ypa ypg yps yra yre yrg yrp yrs ysa ysb yse ysg ysp ysr yss ysy yyb yye yyg yys yyy