a-a a-b a-i aaa aab aai aak aan aar aas aay ab- aba abb abi abk abn abr abs aby ai- aia aib aii aik ain air ais aiy aka akb aki akk akn akr aks an- ana anb ani ank ann anr ans any ar- ara arb ari ark arn arr ars ary as- asa asb asi ask asn asr ass asy ay- aya ayi ayk ayn ayr ays baa bab bai bak ban bar bas bay bba bbb bbi bbk bbn bbr bbs bby bi- bia bib bii bik bin bir bis biy bka bkb bkk bkn bkr bks bna bnb bni bnk bnn bnr bns bra brb bri brk brn brr brs bry bsa bsb bsi bsk bsn bsr bss bsy by- bya byi byk byn byr bys ia- iaa iab iai ian iar ias iba ibb ibi ibk ibn ibr ibs iby iia iib iii iin iir iis ika ikb iki ikk ikr iks in- ina inb ini ink inn inr ins iny ir- ira irb iri irk irn irr irs iry is- isa isb isi isk isn isr iss isy iya iyr iys iyy ka- kaa kab kai kak kan kar kas kay kba kbb kbi kbk kbn kbr kbs kia kib kii kik kin kir kis kkb kki kkk kkn kkr kks kky kn- kna kni knk knn knr kra kri krk krn krr krs kry ksa ksb ksi ksk ksn ksr kss kya kyn kyr kys n-i naa nab nai nak nan nar nas nay nba nbb nbi nbk nbn nbr nbs nia nib nii nik nin nir nis nka nki nkk nkn nkr nks nky nna nnb nni nnk nnn nns nra nrb nri nrk nrn nrr nrs nry nsa nsb nsi nsk nsn nsr nss nsy nya nyk nyn nys nyy ra- raa rab rai rak ran rar ras ray rba rbb rbi rbk rbn rbr rbs ria rib rii rik rin rir ris riy rkb rkk rks rky rna rnb rni rnn rnr rns rny rra rrb rri rrk rrn rrr rrs rsa rsb rsi rsk rsn rsr rss ry- rya ryk ryn ryr rys ryy saa sab sai sak san sar sas say sba sbb sbi sbk sbn sbr sbs sby sia sib sii sik sin sir sis sk- ska skb ski skk skr sks sky sna snb sni snk snn snr sns sny sr- sra srb sri srk srn srr srs sry ss- ssa ssb ssi ssk ssn ssr sss sy- sya syb syi syk syn syr sys yaa yab yai yak yan yar yas yay ybi ybr ybs yby yii yin yir yis yka yki ykk ykn yna ynk ynn yns yny yra yrn yrs ysa ysb ysi ysk ysr yss ysy yyb yys yyy