a-a a-b a-i aaa aab aad aai aar aas aau aay ab- aba abb abd abi abr abs abu aby ad- ada adb add adi adr ads adu ady ai- aia aib aid aii air ais aiu aiy ar- ara arb ard ari arr ars aru ary as- asa asb asd asi asr ass asu asy au- aua aub aud aui aur aus ay- aya ayd ayi ayr ays ayu b-u baa bab bad bai bar bas bau bay bba bbb bbd bbi bbr bbs bbu bby bda bdb bdd bdi bdr bds bdu bdy bi- bia bib bid bii bir bis biu biy bra brb brd bri brr brs bru bry bsa bsb bsd bsi bsr bss bsu bsy bua bub bud bui bur bus buu buy by- bya byd byi byr bys byu daa dab dad dai dar das dau day dba dbb dbd dbi dbr dbs dbu dby dda ddb ddd ddi ddr dds ddu ddy di- dia dib did dii dir dis diu diy dra drb drd dri drr drs dru dry dsa dsb dsd dsi dsr dss dsu dsy dua dub dud dui dur dus duy dy- dya dyb dyd dyr dys dyu dyy i-d ia- iaa iab iad iai iar ias iau iba ibb ibd ibi ibr ibs ibu iby ida idb idd idi idr ids idu idy iia iib iid iii iir iis iiu ir- ira irb ird iri irr irs iru iry is- isa isb isd isi isr iss isu isy iu- iua iub iud iui iur ius iya iyr iys iyy ra- raa rab rad rai rar ras rau ray rba rbb rbd rbi rbr rbs rbu rda rdb rdd rdi rdr rds rdu rdy ria rib rid rii rir ris riy rra rrb rrd rri rrr rrs rru rsa rsb rsd rsi rsr rss rsu rua rub rud rui rur rus ruu ruy ry- rya ryd ryr rys ryu ryy saa sab sad sai sar sas sau say sba sbb sbd sbi sbr sbs sbu sby sda sdb sdd sdi sdr sds sdu sdy sia sib sid sii sir sis siu sr- sra srb srd sri srr srs sry ss- ssa ssb ssd ssi ssr sss ssu sua sub sud sui sur sus suu suy sy- sya syb syd syi syr sys syu ua- uaa uab uad uai uar uas uau uay uba ubb ubi ubr ubs ubu uby uda udb udd udi udr uds udu uia uib uid uii uir uis uiu ur- ura urb urd uri urr urs uru ury usa usb usd usi usr uss usu uua uur uus uuu uyi uys uyu yaa yab yad yai yar yas yau yay ybi ybr ybs yby yda yds ydy yid yii yir yis yra yrs yru ysa ysb ysi ysr yss ysu ysy yua yud yui yur yus yuu yuy yyb yys yyu yyy