a-a a-b a-i a-t aaa aab aai aao aar aas aat aav aay ab- aba abb abi abo abr abs abt abv aby ai- aia aib aii aio air ais ait aiv aiy aoa aob aoi aoo aor aos aot aov ar- ara arb ari aro arr ars art arv ary as- asa asb asi aso asr ass ast asv asy at- ata atb ati ato atr ats att atv av- ava avb avi avo avr avs avt avy ay- aya ayi ayo ayr ays ayt baa bab bai bao bar bas bat bav bay bba bbb bbi bbo bbr bbs bbt bby bi- bia bib bii bio bir bis bit biv biy boa bob boi boo bor bos bot bov boy bra brb bri bro brr brs brt brv bry bsa bsb bsi bso bsr bss bst bsv bsy bta btb bti bto btr bts btt btv bty bva bvb bvi bvo bvr bvs bvt bvv by- bya byi byo byr bys byt i-v ia- iaa iab iai iao iar ias iat iav iba ibb ibi ibo ibr ibs ibt ibv iby iia iib iii iio iir iis iit io- ioa iob ioi ioo ior ios iot iov ir- ira irb iri iro irr irs irt irv iry is- isa isb isi iso isr iss ist isv isy ita itb iti ito its itt itv ity iva ivb ivi ivo ivr ivs ivt ivv ivy iya iyo iyr iys iyt iyy o-i oaa oab oai oao oar oas oat oav ob- oba obb obi obo obr obs obt obv oby oia oib oii oio oir ois oit oiv oo- ooa oob ooi ooo oor oos oot oov or- ora orb ori oro orr ors ort orv ory os- osa osb osi oso osr oss ost osv ot- ota otb oti oto otr ots ott otv ov- ova ovb ovi ovo ovs ovv oya oyi oyo oys ra- raa rab rai rao rar ras rat rav ray rba rbb rbi rbo rbr rbs rbt ria rib rii rio rir ris rit riv riy roa rob roi roo ror ros rot rov roy rra rrb rri rrr rrs rrt rsa rsb rsi rso rsr rss rst rsv rta rtb rti rto rtr rts rtt rtv rty rva rvb rvi rvo rvr rvs rvt rvv rvy ry- rya ryo ryr rys ryy saa sab sai sao sar sas sat sav say sba sbb sbi sbo sbr sbs sbt sbv sby sia sib sii sio sir sis sit siv soa sob soi soo sor sos sot sov soy sr- sra srb sri sro srr srs srt srv sry ss- ssa ssb ssi sso ssr sss sst ssv sta stb sti sto str sts stt stv sty sva svb svi svo svr svs svt svv svy sy- sya syb syi syr sys syt taa tab tai tao tar tas tat tav tay tba tbb tbi tbo tbr tbs tbt tbv tia tib tii tio tir tis tit tiv tiy to- toa tob toi too tor tos tot tov toy tra trb tri tro trr trs trt trv try tsa tsb tsi tso tsr tss tst tsv tsy tta ttb tti tto ttr tts ttt ttv tty tva tvb tvi tvo tvr tvs tvt tvy tya tyo tyr tys tyt v-a vaa vab vai vao var vas vat vav vay vba vbi vbo vbr vbs vbv vi- via vib vii vio vir vis vit viv viy voa vob voi voo vor vos vot vov voy vra vrb vri vrr vrs vrt vry vsa vsb vsi vso vsr vss vst vsv vta vtb vti vto vtr vts vtt vtv vty vva vvb vvi vvo vvr vvs vvt vvv vyt yaa yab yai yao yar yas yat yav yay ybi ybr ybs yby yii yio yir yis yit yob yoi yoo yor yos yot yoy yra yro yrs yrt ysa ysb ysi yso ysr yss yst ysy yta yto ytr yts ytt ytv yva yvi yvo yvr yvy yyb yys yyt yyy