-er -ey a-a a-b a-c a-t aaa aab aac aae aap aar aas aat aay ab- aba abb abc abe abp abr abs abt aby ac- aca acb acc ace acp acr acs act acy aea aeb aec aee aep aer aes aet aey ap- apa apb apc ape app apr aps apt apy ar- ara arb arc are arp arr ars art ary as- asa asb asc ase asp asr ass ast asy at- ata atb atc ate atp atr ats att ay- aya ayc aye ayp ayr ays ayt b-p baa bab bac bae bap bar bas bat bay bba bbb bbc bbe bbp bbr bbs bbt bby bca bcb bcc bce bcp bcr bcs bct bcy be- bea beb bec bee bep ber bes bet bey bpa bpb bpc bpe bpp bpr bps bpt bpy bra brb bre brp brr brs brt bry bsa bsb bsc bse bsp bsr bss bst bsy bta btb btc bte btp btr bts btt bty by- bya byc bye byp byr bys byt c-- caa cab cac cae cap car cas cat cay cba cbb cbc cbe cbp cbr cbs cbt cby cca ccb ccc cce ccp ccr ccs cct ce- cea ceb cec cee cep cer ces cet cey cpa cpb cpc cpe cpp cpr cps cpt cra crb crc cre crp crr crs crt cry csa csb csc cse csp csr css cst csy cta ctb ctc cte ctp ctr cts ctt cty cya cyb cyc cye cyp cyr cys cyt eaa eab eac eae eap ear eas eat eba ebb ebc ebe ebp ebr ebs ebt eby ec- eca ecb ecc ece ecr ecs ect eea eeb eec eee eep eer ees eet eey ep- epa epb epc epe epp epr eps ept era erb erc ere erp err ers ert ery es- esa esb esc ese esp esr ess est esy eta etb etc ete etp etr ets ett ety eya eyc eye eyp eyr eys eyt p-p paa pab pac pae pap par pas pat pay pba pbb pbc pbe pbp pbr pbs pbt pby pca pcb pcc pce pcp pcr pcs pct pea peb pec pee pep per pes pet pey ppa ppb ppc ppe ppp ppr pps ppt pra prb prc pre prp prr prs prt pry ps- psa psb psc pse psp psr pss pst psy pt- pta ptb ptc pte ptp ptr pts ptt pty py- pya pyb pyc pye pyr pys pyt ra- raa rab rac rae rap rar ras rat ray rba rbb rbc rbe rbp rbr rbs rbt rca rcb rcc rce rcp rcr rcs rct re- rea reb rec ree rep rer res ret rey rpa rpb rpc rpe rpp rpr rps rpt rra rrb rrc rrp rrr rrs rrt rsa rsb rsc rse rsp rsr rss rst rta rtb rtc rte rtp rtr rts rtt rty ry- rya ryc rye ryr rys ryy saa sab sac sae sap sar sas sat say sba sbb sbc sbe sbp sbr sbs sbt sby sca scb scc sce scp scr scs sct se- sea seb sec see sep ser ses set sey spa spb spc spe spp spr sps spt spy sr- sra srb src sre srp srr srs srt sry ss- ssa ssb ssc sse ssp ssr sss sst sta stb stc ste stp str sts stt sty sy- sya syb syc sye syp syr sys syt taa tab tac tae tap tar tas tat tay tba tbb tbc tbe tbp tbr tbs tbt tca tcb tcc tce tcp tcr tcs tct te- tea teb tec tee tep ter tes tet tey tpa tpb tpc tpe tpp tpr tps tpt tra trb trc tre trp trr trs trt try tsa tsb tsc tse tsp tsr tss tst tsy tta ttb ttc tte ttp ttr tts ttt tty tya tyc tye typ tyr tys tyt yaa yab yac yae yap yar yas yat yay ybc ybe ybp ybr ybs yby yca ycc yce ycp ycs ycy yea yeb yec yee yep yer yes yet yey ypa yps yra yrc yre yrp yrs yrt ysa ysb ysc yse ysp ysr yss yst ysy yta ytc yte ytp ytr yts ytt yyb yyc yye yys yyt yyy