a-a a-b aaa aab aad aan aao aar aas aay ab- aba abb abd abn abo abr abs aby ad- ada adb add adn ado adr ads ady an- ana anb and ann ano anr ans any aoa aob aod aon aoo aor aos ar- ara arb ard arn aro arr ars ary as- asa asb asd asn aso asr ass asy ay- aya ayd ayn ayo ayr ays baa bab bad ban bao bar bas bay bba bbb bbd bbn bbo bbr bbs bby bda bdb bdd bdo bdr bds bdy bna bnb bnd bnn bno bnr bns boa bob bod bon boo bor bos boy bra brb brd brn bro brr brs bry bsa bsb bsd bsn bso bsr bss bsy by- bya byd byn byo byr bys daa dab dad dan dao dar das day dba dbb dbd dbn dbo dbr dbs dby dda ddb ddd ddn ddo ddr dds ddy dna dnb dnd dnn dno dnr dns dny doa dob dod don doo dor dos doy dra drb drd drn dro drr drs dry dsa dsb dsd dsn dso dsr dss dsy dy- dya dyb dyd dyn dyo dyr dys dyy naa nab nad nan nao nar nas nay nba nbb nbd nbn nbo nbr nbs nda ndb ndd ndn ndo ndr nds ndy nna nnb nnn nno nns no- noa nob nod non noo nor nos noy nra nrb nrd nrn nro nrr nrs nry nsa nsb nsd nsn nso nsr nss nsy nya nyd nyn nyo nys nyy oaa oab oad oan oao oar oas ob- oba obb obd obn obo obr obs oby oda odb odd odn odo odr ods on- ona onb ond onn ono onr ons ony oo- ooa oob ood oon ooo oor oos or- ora orb ord orn oro orr ors ory os- osa osb osd osn oso osr oss oya oyd oyo oys ra- raa rab rad ran rao rar ras ray rba rbb rbd rbn rbo rbr rbs rda rdb rdd rdn rdo rdr rds rdy rna rnb rnd rnn rno rnr rns rny roa rob rod ron roo ror ros roy rra rrb rrd rrn rrr rrs rsa rsb rsd rsn rso rsr rss ry- rya ryd ryn ryo ryr rys ryy saa sab sad san sao sar sas say sba sbb sbd sbn sbo sbr sbs sby sda sdb sdd sdn sdo sdr sds sdy sna snb snd snn sno snr sns sny soa sob sod son soo sor sos soy sr- sra srb srd srn sro srr srs sry ss- ssa ssb ssd ssn sso ssr sss sy- sya syb syd syn syr sys yaa yab yad yan yao yar yas yay ybr ybs yby yda ydn ydo yds ydy yna ynd ynn yns yny yob yod yon yoo yor yos yoy yra yrn yro yrs ysa ysb yso ysr yss ysy yyb yys yyy