a-a a-b aaa aab aad aah aao aar aas aay ab- aba abb abd abh abo abr abs aby ad- ada adb add adh ado adr ads ady aha ahb ahd ahh aho ahr ahs ahy aoa aob aod aoh aoo aor aos ar- ara arb ard arh aro arr ars ary as- asa asb asd ash aso asr ass asy ay- aya ayd ayh ayo ayr ays baa bab bad bah bao bar bas bay bba bbb bbd bbh bbo bbr bbs bby bda bdb bdd bdh bdo bdr bds bdy bha bhb bhd bhh bho bhr bhs boa bob bod boh boo bor bos boy bra brb brd brh bro brr brs bry bsa bsb bsd bsh bso bsr bss bsy by- bya byd byh byo byr bys daa dab dad dah dao dar das day dba dbb dbd dbh dbo dbr dbs dby dda ddb ddd ddh ddo ddr dds ddy dh- dha dhb dhd dhh dho dhr dhs doa dob dod doh doo dor dos doy dra drb drd dro drr drs dry dsa dsb dsd dsh dso dsr dss dsy dy- dya dyb dyd dyo dyr dys dyy haa hab had hah hao har has hay hba hbb hbd hbh hbo hbr hbs hby hda hdb hdd hdh hdo hdr hds hdy hha hhb hhd hhh hho hhr hhs hhy hoa hob hod hoh hoo hor hos hoy hr- hra hrb hrd hrh hro hrr hrs hsa hsb hsd hsh hsr hss hsy hy- hya hyb hyd hyh hyo hyr hys hyy oaa oab oad oah oao oar oas ob- oba obb obd obh obo obr obs oby oda odb odd odh odo odr ods oha ohd ohh oho ohr ohs oo- ooa oob ood ooh ooo oor oos or- ora orb ord orh oro orr ors ory os- osa osb osd osh oso osr oss oya oyd oyo oys ra- raa rab rad rah rao rar ras ray rba rbb rbd rbh rbo rbr rbs rda rdb rdd rdh rdo rdr rds rdy rh- rha rhb rhd rhh rho rhr rhs roa rob rod roh roo ror ros roy rra rrb rrd rrh rrr rrs rsa rsb rsd rsh rso rsr rss ry- rya ryd ryo ryr rys ryy saa sab sad sah sao sar sas say sba sbb sbd sbh sbo sbr sbs sby sda sdb sdd sdh sdo sdr sds sdy sh- sha shb shd shh sho shr shs shy soa sob sod soh soo sor sos soy sr- sra srb srd srh sro srr srs sry ss- ssa ssb ssd ssh sso ssr sss sy- sya syb syd syh syr sys yaa yab yad yah yao yar yas yay ybr ybs yby yda ydo yds ydy yha yhs yob yod yoo yor yos yoy yra yro yrs ysa ysb yso ysr yss ysy yyb yys yyy