a-a a-b aaa aab aad aan aar aas aay ab- aba abb abd abn abr abs aby ad- ada adb add adn adr ads ady an- ana anb and ann anr ans any ar- ara arb ard arn arr ars ary as- asa asb asd asn asr ass asy ay- aya ayd ayn ayr ays baa bab bad ban bar bas bay bba bbb bbd bbn bbr bbs bby bda bdb bdd bdr bds bdy bna bnb bnd bnn bnr bns bra brb brd brn brr brs bry bsa bsb bsd bsn bsr bss bsy by- bya byd byn byr bys daa dab dad dan dar das day dba dbb dbd dbn dbr dbs dby dda ddb ddd ddn ddr dds ddy dna dnb dnd dnn dnr dns dny dra drb drd drn drr drs dry dsa dsb dsd dsn dsr dss dsy dy- dya dyb dyd dyn dyr dys dyy naa nab nad nan nar nas nay nba nbb nbd nbn nbr nbs nda ndb ndd ndn ndr nds ndy nna nnb nnn nns nra nrb nrd nrn nrr nrs nry nsa nsb nsd nsn nsr nss nsy nya nyd nyn nys nyy ra- raa rab rad ran rar ras ray rba rbb rbd rbn rbr rbs rda rdb rdd rdn rdr rds rdy rna rnb rnd rnn rnr rns rny rra rrb rrd rrn rrr rrs rsa rsb rsd rsn rsr rss ry- rya ryd ryn ryr rys ryy saa sab sad san sar sas say sba sbb sbd sbn sbr sbs sby sda sdb sdd sdn sdr sds sdy sna snb snd snn snr sns sny sr- sra srb srd srn srr srs sry ss- ssa ssb ssd ssn ssr sss sy- sya syb syd syn syr sys yaa yab yad yan yar yas yay ybr ybs yby yda ydn yds ydy yna ynd ynn yns yny yra yrn yrs ysa ysb ysr yss ysy yyb yys yyy