-er -ey a-a a-b a-t aaa aab aae aap aar aas aat aay ab- aba abb abe abp abr abs abt aby aea aeb aee aep aer aes aet aey ap- apa apb ape app apr aps apt apy ar- ara arb are arp arr ars art ary as- asa asb ase asp asr ass ast asy at- ata atb ate atp atr ats att ay- aya aye ayp ayr ays ayt b-p baa bab bae bap bar bas bat bay bba bbb bbe bbp bbr bbs bbt bby be- bea beb bee bep ber bes bet bey bpa bpb bpe bpp bpr bps bpt bpy bra brb bre brp brr brs brt bry bsa bsb bse bsp bsr bss bst bsy bta btb bte btp btr bts btt bty by- bya bye byp byr bys byt eaa eab eae eap ear eas eat eba ebb ebe ebp ebr ebs ebt eby eea eeb eee eep eer ees eet eey ep- epa epb epe epp epr eps ept era erb ere erp err ers ert ery es- esa esb ese esp esr ess est esy eta etb ete etp etr ets ett ety eya eye eyp eyr eys eyt p-p paa pab pae pap par pas pat pay pba pbb pbe pbp pbr pbs pbt pby pea peb pee pep per pes pet pey ppa ppb ppe ppp ppr pps ppt pra prb pre prp prr prs prt pry ps- psa psb pse psp psr pss pst psy pt- pta ptb pte ptp ptr pts ptt pty py- pya pyb pye pyr pys pyt ra- raa rab rae rap rar ras rat ray rba rbb rbe rbp rbr rbs rbt re- rea reb ree rep rer res ret rey rpa rpb rpe rpp rpr rps rpt rra rrb rrp rrr rrs rrt rsa rsb rse rsp rsr rss rst rta rtb rte rtp rtr rts rtt rty ry- rya rye ryr rys ryy saa sab sae sap sar sas sat say sba sbb sbe sbp sbr sbs sbt sby se- sea seb see sep ser ses set sey spa spb spe spp spr sps spt spy sr- sra srb sre srp srr srs srt sry ss- ssa ssb sse ssp ssr sss sst sta stb ste stp str sts stt sty sy- sya syb sye syp syr sys syt taa tab tae tap tar tas tat tay tba tbb tbe tbp tbr tbs tbt te- tea teb tee tep ter tes tet tey tpa tpb tpe tpp tpr tps tpt tra trb tre trp trr trs trt try tsa tsb tse tsp tsr tss tst tsy tta ttb tte ttp ttr tts ttt tty tya tye typ tyr tys tyt yaa yab yae yap yar yas yat yay ybe ybp ybr ybs yby yea yeb yee yep yer yes yet yey ypa yps yra yre yrp yrs yrt ysa ysb yse ysp ysr yss yst ysy yta yte ytp ytr yts ytt yyb yye yys yyt yyy