a-a a-b a-i a-t aaa aab aai aan aar aas aat aay ab- aba abb abi abn abr abs abt aby ai- aia aib aii ain air ais ait aiy an- ana anb ani ann anr ans ant any ar- ara arb ari arn arr ars art ary as- asa asb asi asn asr ass ast asy at- ata atb ati atn atr ats att ay- aya ayi ayn ayr ays ayt baa bab bai ban bar bas bat bay bba bbb bbi bbn bbr bbs bbt bby bi- bia bib bii bin bir bis bit biy bna bnb bni bnn bnr bns bnt bra brb bri brn brr brs brt bry bsa bsb bsi bsn bsr bss bst bsy bta btb bti btn btr bts btt bty by- bya byi byn byr bys byt ia- iaa iab iai ian iar ias iat iba ibb ibi ibn ibr ibs ibt iby iia iib iii iin iir iis iit in- ina inb ini inn inr ins int iny ir- ira irb iri irn irr irs irt iry is- isa isb isi isn isr iss ist isy ita itb iti itn its itt ity iya iyr iys iyt iyy n-i naa nab nai nan nar nas nat nay nba nbb nbi nbn nbr nbs nbt nia nib nii nin nir nis nit nna nnb nni nnn nns nnt nra nrb nri nrn nrr nrs nrt nry nsa nsb nsi nsn nsr nss nst nsy nta ntb nti ntn ntr nts ntt nya nyn nys nyt nyy ra- raa rab rai ran rar ras rat ray rba rbb rbi rbn rbr rbs rbt ria rib rii rin rir ris rit riy rna rnb rni rnn rnr rns rnt rny rra rrb rri rrn rrr rrs rrt rsa rsb rsi rsn rsr rss rst rta rtb rti rtn rtr rts rtt rty ry- rya ryn ryr rys ryy saa sab sai san sar sas sat say sba sbb sbi sbn sbr sbs sbt sby sia sib sii sin sir sis sit sna snb sni snn snr sns snt sny sr- sra srb sri srn srr srs srt sry ss- ssa ssb ssi ssn ssr sss sst sta stb sti stn str sts stt sty sy- sya syb syi syn syr sys syt taa tab tai tan tar tas tat tay tba tbb tbi tbn tbr tbs tbt tia tib tii tin tir tis tit tiy tna tnb tni tnn tnr tns tnt tra trb tri trn trr trs trt try tsa tsb tsi tsn tsr tss tst tsy tta ttb tti ttn ttr tts ttt tty tya tyn tyr tys tyt yaa yab yai yan yar yas yat yay ybi ybr ybs yby yii yin yir yis yit yna ynn yns yny yra yrn yrs yrt ysa ysb ysi ysr yss yst ysy yta ytn ytr yts ytt yyb yys yyt yyy