a-a a-b a-i a-t aaa aab aad aai aar aas aat aau aay ab- aba abb abd abi abr abs abt abu aby ad- ada adb add adi adr ads adt adu ady ai- aia aib aid aii air ais ait aiu aiy ar- ara arb ard ari arr ars art aru ary as- asa asb asd asi asr ass ast asu asy at- ata atb atd ati atr ats att atu au- aua aub aud aui aur aus aut ay- aya ayd ayi ayr ays ayt ayu b-u baa bab bad bai bar bas bat bau bay bba bbb bbd bbi bbr bbs bbt bbu bby bda bdb bdd bdi bdr bds bdt bdu bdy bi- bia bib bid bii bir bis bit biu biy bra brb brd bri brr brs brt bru bry bsa bsb bsd bsi bsr bss bst bsu bsy bta btb btd bti btr bts btt btu bty bua bub bud bui bur bus but buu buy by- bya byd byi byr bys byt byu daa dab dad dai dar das dat dau day dba dbb dbd dbi dbr dbs dbt dbu dby dda ddb ddd ddi ddr dds ddt ddu ddy di- dia dib did dii dir dis dit diu diy dra drb drd dri drr drs drt dru dry dsa dsb dsd dsi dsr dss dst dsu dsy dta dtb dtd dti dtr dts dtt dtu dty dua dub dud dui dur dus dut duy dy- dya dyb dyd dyr dys dyu dyy i-d ia- iaa iab iad iai iar ias iat iau iba ibb ibd ibi ibr ibs ibt ibu iby ida idb idd idi idr ids idt idu idy iia iib iid iii iir iis iit iiu ir- ira irb ird iri irr irs irt iru iry is- isa isb isd isi isr iss ist isu isy ita itb itd iti its itt itu ity iu- iua iub iud iui iur ius iut iya iyr iys iyt iyy ra- raa rab rad rai rar ras rat rau ray rba rbb rbd rbi rbr rbs rbt rbu rda rdb rdd rdi rdr rds rdt rdu rdy ria rib rid rii rir ris rit riy rra rrb rrd rri rrr rrs rrt rru rsa rsb rsd rsi rsr rss rst rsu rta rtb rtd rti rtr rts rtt rtu rty rua rub rud rui rur rus rut ruu ruy ry- rya ryd ryr rys ryu ryy saa sab sad sai sar sas sat sau say sba sbb sbd sbi sbr sbs sbt sbu sby sda sdb sdd sdi sdr sds sdt sdu sdy sia sib sid sii sir sis sit siu sr- sra srb srd sri srr srs srt sry ss- ssa ssb ssd ssi ssr sss sst ssu sta stb std sti str sts stt stu sty sua sub sud sui sur sus sut suu suy sy- sya syb syd syi syr sys syt syu taa tab tad tai tar tas tat tau tay tba tbb tbd tbi tbr tbs tbt tbu tda tdb tdd tdi tdr tds tdt tdu tdy tia tib tid tii tir tis tit tiu tiy tra trb trd tri trr trs trt tru try tsa tsb tsd tsi tsr tss tst tsu tsy tta ttb ttd tti ttr tts ttt ttu tty tua tub tud tui tur tus tut tuu tuy tya tyd tyr tys tyt ua- uaa uab uad uai uar uas uat uau uay uba ubb ubi ubr ubs ubt ubu uby uda udb udd udi udr uds udt udu uia uib uid uii uir uis uit uiu ur- ura urb urd uri urr urs urt uru ury usa usb usd usi usr uss ust usu uta utb utd uti utr uts utt utu uty uua uur uus uut uuu uyi uys uyu yaa yab yad yai yar yas yat yau yay ybi ybr ybs yby yda yds ydt ydy yid yii yir yis yit yra yrs yrt yru ysa ysb ysi ysr yss yst ysu ysy yta ytd ytr yts ytt ytu yua yud yui yur yus yut yuu yuy yyb yys yyt yyu yyy