a-a a-b a-i a-t aaa aab aad aai aao aap aar aas aat aay ab- aba abb abd abi abo abp abr abs abt aby ad- ada adb add adi ado adp adr ads adt ady ai- aia aib aid aii aio aip air ais ait aiy aoa aob aod aoi aoo aop aor aos aot ap- apa apb apd api apo app apr aps apt apy ar- ara arb ard ari aro arp arr ars art ary as- asa asb asd asi aso asp asr ass ast asy at- ata atb atd ati ato atp atr ats att ay- aya ayd ayi ayo ayp ayr ays ayt b-p baa bab bad bai bao bap bar bas bat bay bba bbb bbd bbi bbo bbp bbr bbs bbt bby bda bdb bdd bdi bdo bdp bdr bds bdt bdy bi- bia bib bid bii bio bip bir bis bit biy boa bob bod boi boo bop bor bos bot boy bpa bpb bpd bpi bpo bpp bpr bps bpt bpy bra brb brd bri bro brp brr brs brt bry bsa bsb bsd bsi bso bsp bsr bss bst bsy bta btb btd bti bto btp btr bts btt bty by- bya byd byi byo byp byr bys byt daa dab dad dai dao dap dar das dat day dba dbb dbd dbi dbo dbp dbr dbs dbt dby dda ddb ddd ddi ddo ddp ddr dds ddt ddy di- dia dib did dii dio dip dir dis dit diy doa dob dod doi doo dop dor dos dot doy dpa dpb dpd dpi dpo dpp dpr dps dpt dra drb drd dri dro drp drr drs drt dry dsa dsb dsd dsi dso dsp dsr dss dst dsy dta dtb dtd dti dto dtp dtr dts dtt dty dy- dya dyb dyd dyo dyp dyr dys dyy i-d ia- iaa iab iad iai iao iap iar ias iat iba ibb ibd ibi ibo ibp ibr ibs ibt iby ida idb idd idi ido idp idr ids idt idy iia iib iid iii iio iip iir iis iit io- ioa iob iod ioi ioo iop ior ios iot ipa ipb ipd ipi ipo ipp ipr ips ipt ipy ir- ira irb ird iri iro irp irr irs irt iry is- isa isb isd isi iso isp isr iss ist isy ita itb itd iti ito itp its itt ity iya iyo iyr iys iyt iyy o-i oaa oab oad oai oao oap oar oas oat ob- oba obb obd obi obo obp obr obs obt oby oda odb odd odi odo odp odr ods odt oia oib oid oii oio oip oir ois oit oo- ooa oob ood ooi ooo oop oor oos oot op- opa opb opd opi opo opp opr ops opt opy or- ora orb ord ori oro orp orr ors ort ory os- osa osb osd osi oso osp osr oss ost ot- ota otb otd oti oto otp otr ots ott oya oyd oyi oyo oys p-p paa pab pad pai pao pap par pas pat pay pba pbb pbd pbi pbo pbp pbr pbs pbt pby pda pdb pdd pdi pdo pdp pdr pds pdt pia pib pid pii pio pip pir pis pit poa pob pod poi poo pop por pos pot poy ppa ppb ppd ppi ppo ppp ppr pps ppt pra prb prd pri pro prp prr prs prt pry ps- psa psb psd psi pso psp psr pss pst psy pt- pta ptb ptd pti pto ptp ptr pts ptt pty py- pya pyb pyd pyo pyr pys pyt ra- raa rab rad rai rao rap rar ras rat ray rba rbb rbd rbi rbo rbp rbr rbs rbt rda rdb rdd rdi rdo rdp rdr rds rdt rdy ria rib rid rii rio rip rir ris rit riy roa rob rod roi roo rop ror ros rot roy rpa rpb rpd rpi rpo rpp rpr rps rpt rra rrb rrd rri rrp rrr rrs rrt rsa rsb rsd rsi rso rsp rsr rss rst rta rtb rtd rti rto rtp rtr rts rtt rty ry- rya ryd ryo ryr rys ryy saa sab sad sai sao sap sar sas sat say sba sbb sbd sbi sbo sbp sbr sbs sbt sby sda sdb sdd sdi sdo sdp sdr sds sdt sdy sia sib sid sii sio sip sir sis sit soa sob sod soi soo sop sor sos sot soy spa spb spd spi spo spp spr sps spt spy sr- sra srb srd sri sro srp srr srs srt sry ss- ssa ssb ssd ssi sso ssp ssr sss sst sta stb std sti sto stp str sts stt sty sy- sya syb syd syi syp syr sys syt taa tab tad tai tao tap tar tas tat tay tba tbb tbd tbi tbo tbp tbr tbs tbt tda tdb tdd tdi tdo tdp tdr tds tdt tdy tia tib tid tii tio tip tir tis tit tiy to- toa tob tod toi too top tor tos tot toy tpa tpb tpd tpi tpo tpp tpr tps tpt tra trb trd tri tro trp trr trs trt try tsa tsb tsd tsi tso tsp tsr tss tst tsy tta ttb ttd tti tto ttp ttr tts ttt tty tya tyd tyo typ tyr tys tyt yaa yab yad yai yao yap yar yas yat yay ybi ybp ybr ybs yby yda ydo yds ydt ydy yid yii yio yip yir yis yit yob yod yoi yoo yop yor yos yot yoy ypa ypd ypo yps yra yro yrp yrs yrt ysa ysb ysi yso ysp ysr yss yst ysy yta ytd yto ytp ytr yts ytt yyb yys yyt yyy