a-a a-b a-i a-t aaa aab aai aao aas aat aav aay ab- aba abb abi abo abs abt abv aby ai- aia aib aii aio ais ait aiv aiy aoa aob aoi aoo aos aot aov as- asa asb asi aso ass ast asv asy at- ata atb ati ato ats att atv av- ava avb avi avo avs avt avy ay- aya ayi ayo ays ayt baa bab bai bao bas bat bav bay bba bbb bbi bbo bbs bbt bby bi- bia bib bii bio bis bit biv biy boa bob boi boo bos bot bov boy bsa bsb bsi bso bss bst bsv bsy bta btb bti bto bts btt btv bty bva bvb bvi bvo bvs bvt bvv by- bya byi byo bys byt i-v ia- iaa iab iai iao ias iat iav iba ibb ibi ibo ibs ibt ibv iby iia iib iii iio iis iit io- ioa iob ioi ioo ios iot iov is- isa isb isi iso iss ist isv isy ita itb iti ito its itt itv ity iva ivb ivi ivo ivs ivt ivv ivy iya iyo iys iyt iyy o-i oaa oab oai oao oas oat oav ob- oba obb obi obo obs obt obv oby oia oib oii oio ois oit oiv oo- ooa oob ooi ooo oos oot oov os- osa osb osi oso oss ost osv ot- ota otb oti oto ots ott otv ov- ova ovb ovi ovo ovs ovv oya oyi oyo oys saa sab sai sao sas sat sav say sba sbb sbi sbo sbs sbt sbv sby sia sib sii sio sis sit siv soa sob soi soo sos sot sov soy ss- ssa ssb ssi sso sss sst ssv sta stb sti sto sts stt stv sty sva svb svi svo svs svt svv svy sy- sya syb syi sys syt taa tab tai tao tas tat tav tay tba tbb tbi tbo tbs tbt tbv tia tib tii tio tis tit tiv tiy to- toa tob toi too tos tot tov toy tsa tsb tsi tso tss tst tsv tsy tta ttb tti tto tts ttt ttv tty tva tvb tvi tvo tvs tvt tvy tya tyo tys tyt v-a vaa vab vai vao vas vat vav vay vba vbi vbo vbs vbv vi- via vib vii vio vis vit viv viy voa vob voi voo vos vot vov voy vsa vsb vsi vso vss vst vsv vta vtb vti vto vts vtt vtv vty vva vvb vvi vvo vvs vvt vvv vyt yaa yab yai yao yas yat yav yay ybi ybs yby yii yio yis yit yob yoi yoo yos yot yoy ysa ysb ysi yso yss yst ysy yta yto yts ytt ytv yva yvi yvo yvy yyb yys yyt yyy