a-a a-b a-i a-t aaa aab aai aan aao aar aas aat aay ab- aba abb abi abn abo abr abs abt aby ai- aia aib aii ain aio air ais ait aiy an- ana anb ani ann ano anr ans ant any aoa aob aoi aon aoo aor aos aot ar- ara arb ari arn aro arr ars art ary as- asa asb asi asn aso asr ass ast asy at- ata atb ati atn ato atr ats att ay- aya ayi ayn ayo ayr ays ayt baa bab bai ban bao bar bas bat bay bba bbb bbi bbn bbo bbr bbs bbt bby bi- bia bib bii bin bio bir bis bit biy bna bnb bni bnn bno bnr bns bnt boa bob boi bon boo bor bos bot boy bra brb bri brn bro brr brs brt bry bsa bsb bsi bsn bso bsr bss bst bsy bta btb bti btn bto btr bts btt bty by- bya byi byn byo byr bys byt ia- iaa iab iai ian iao iar ias iat iba ibb ibi ibn ibo ibr ibs ibt iby iia iib iii iin iio iir iis iit in- ina inb ini inn ino inr ins int iny io- ioa iob ioi ion ioo ior ios iot ir- ira irb iri irn iro irr irs irt iry is- isa isb isi isn iso isr iss ist isy ita itb iti itn ito its itt ity iya iyo iyr iys iyt iyy n-i naa nab nai nan nao nar nas nat nay nba nbb nbi nbn nbo nbr nbs nbt nia nib nii nin nio nir nis nit nna nnb nni nnn nno nns nnt no- noa nob noi non noo nor nos not noy nra nrb nri nrn nro nrr nrs nrt nry nsa nsb nsi nsn nso nsr nss nst nsy nta ntb nti ntn nto ntr nts ntt nya nyn nyo nys nyt nyy o-i oaa oab oai oan oao oar oas oat ob- oba obb obi obn obo obr obs obt oby oia oib oii oin oio oir ois oit on- ona onb oni onn ono onr ons ont ony oo- ooa oob ooi oon ooo oor oos oot or- ora orb ori orn oro orr ors ort ory os- osa osb osi osn oso osr oss ost ot- ota otb oti otn oto otr ots ott oya oyi oyo oys ra- raa rab rai ran rao rar ras rat ray rba rbb rbi rbn rbo rbr rbs rbt ria rib rii rin rio rir ris rit riy rna rnb rni rnn rno rnr rns rnt rny roa rob roi ron roo ror ros rot roy rra rrb rri rrn rrr rrs rrt rsa rsb rsi rsn rso rsr rss rst rta rtb rti rtn rto rtr rts rtt rty ry- rya ryn ryo ryr rys ryy saa sab sai san sao sar sas sat say sba sbb sbi sbn sbo sbr sbs sbt sby sia sib sii sin sio sir sis sit sna snb sni snn sno snr sns snt sny soa sob soi son soo sor sos sot soy sr- sra srb sri srn sro srr srs srt sry ss- ssa ssb ssi ssn sso ssr sss sst sta stb sti stn sto str sts stt sty sy- sya syb syi syn syr sys syt taa tab tai tan tao tar tas tat tay tba tbb tbi tbn tbo tbr tbs tbt tia tib tii tin tio tir tis tit tiy tna tnb tni tnn tno tnr tns tnt to- toa tob toi ton too tor tos tot toy tra trb tri trn tro trr trs trt try tsa tsb tsi tsn tso tsr tss tst tsy tta ttb tti ttn tto ttr tts ttt tty tya tyn tyo tyr tys tyt yaa yab yai yan yao yar yas yat yay ybi ybr ybs yby yii yin yio yir yis yit yna ynn yns yny yob yoi yon yoo yor yos yot yoy yra yrn yro yrs yrt ysa ysb ysi yso ysr yss yst ysy yta ytn yto ytr yts ytt yyb yys yyt yyy