a-a a-b a-t aaa aab aad aan aar aas aat aay ab- aba abb abd abn abr abs abt aby ad- ada adb add adn adr ads adt ady an- ana anb and ann anr ans ant any ar- ara arb ard arn arr ars art ary as- asa asb asd asn asr ass ast asy at- ata atb atd atn atr ats att ay- aya ayd ayn ayr ays ayt baa bab bad ban bar bas bat bay bba bbb bbd bbn bbr bbs bbt bby bda bdb bdd bdr bds bdt bdy bna bnb bnd bnn bnr bns bnt bra brb brd brn brr brs brt bry bsa bsb bsd bsn bsr bss bst bsy bta btb btd btn btr bts btt bty by- bya byd byn byr bys byt daa dab dad dan dar das dat day dba dbb dbd dbn dbr dbs dbt dby dda ddb ddd ddn ddr dds ddt ddy dna dnb dnd dnn dnr dns dnt dny dra drb drd drn drr drs drt dry dsa dsb dsd dsn dsr dss dst dsy dta dtb dtd dtn dtr dts dtt dty dy- dya dyb dyd dyn dyr dys dyy naa nab nad nan nar nas nat nay nba nbb nbd nbn nbr nbs nbt nda ndb ndd ndn ndr nds ndt ndy nna nnb nnn nns nnt nra nrb nrd nrn nrr nrs nrt nry nsa nsb nsd nsn nsr nss nst nsy nta ntb ntd ntn ntr nts ntt nya nyd nyn nys nyt nyy ra- raa rab rad ran rar ras rat ray rba rbb rbd rbn rbr rbs rbt rda rdb rdd rdn rdr rds rdt rdy rna rnb rnd rnn rnr rns rnt rny rra rrb rrd rrn rrr rrs rrt rsa rsb rsd rsn rsr rss rst rta rtb rtd rtn rtr rts rtt rty ry- rya ryd ryn ryr rys ryy saa sab sad san sar sas sat say sba sbb sbd sbn sbr sbs sbt sby sda sdb sdd sdn sdr sds sdt sdy sna snb snd snn snr sns snt sny sr- sra srb srd srn srr srs srt sry ss- ssa ssb ssd ssn ssr sss sst sta stb std stn str sts stt sty sy- sya syb syd syn syr sys syt taa tab tad tan tar tas tat tay tba tbb tbd tbn tbr tbs tbt tda tdb tdd tdn tdr tds tdt tdy tna tnb tnd tnn tnr tns tnt tra trb trd trn trr trs trt try tsa tsb tsd tsn tsr tss tst tsy tta ttb ttd ttn ttr tts ttt tty tya tyd tyn tyr tys tyt yaa yab yad yan yar yas yat yay ybr ybs yby yda ydn yds ydt ydy yna ynd ynn yns yny yra yrn yrs yrt ysa ysb ysr yss yst ysy yta ytd ytn ytr yts ytt yyb yys yyt yyy