-ey a-a a-b a-t aaa aab aae aan aas aat aav aay ab- aba abb abe abn abs abt abv aby aea aeb aee aen aes aet aev aey an- ana anb ane ann ans ant anv any as- asa asb ase asn ass ast asv asy at- ata atb ate atn ats att atv av- ava avb ave avn avs avt avy ay- aya aye ayn ays ayt baa bab bae ban bas bat bav bay bba bbb bbe bbn bbs bbt bby be- bea beb bee ben bes bet bev bey bna bnb bne bnn bns bnt bnv bsa bsb bse bsn bss bst bsv bsy bta btb bte btn bts btt btv bty bva bvb bve bvn bvs bvt bvv by- bya bye byn bys byt eaa eab eae ean eas eat eav eba ebb ebe ebn ebs ebt ebv eby eea eeb eee een ees eet eev eey en- ena enb ene enn ens ent env eny es- esa esb ese esn ess est esv esy eta etb ete etn ets ett etv ety eva evb eve evn evs evt evv evy eya eye eyn eys eyt naa nab nae nan nas nat nav nay nba nbb nbe nbn nbs nbt nbv ne- nea neb nee nen nes net nev ney nna nnb nne nnn nns nnt nnv nsa nsb nse nsn nss nst nsv nsy nta ntb nte ntn nts ntt ntv nva nvb nve nvn nvt nvv nya nye nyn nys nyt nyy saa sab sae san sas sat sav say sba sbb sbe sbn sbs sbt sbv sby se- sea seb see sen ses set sev sey sna snb sne snn sns snt snv sny ss- ssa ssb sse ssn sss sst ssv sta stb ste stn sts stt stv sty sva svb sve svn svs svt svv svy sy- sya syb sye syn sys syt taa tab tae tan tas tat tav tay tba tbb tbe tbn tbs tbt tbv te- tea teb tee ten tes tet tev tey tna tnb tne tnn tns tnt tsa tsb tse tsn tss tst tsv tsy tta ttb tte ttn tts ttt ttv tty tva tvb tve tvn tvs tvt tvy tya tye tyn tys tyt v-a v-e vaa vab vae van vas vat vav vay vba vbs vbv vea veb vee ven ves vet vey vn- vna vns vnv vsa vsb vse vsn vss vst vsv vta vtb vte vts vtt vtv vty vva vvb vvs vvt vvv vye vyn vyt yaa yab yae yan yas yat yav yay ybe ybs yby yea yeb yee yen yes yet yev yey yna yne ynn yns yny ysa ysb yse yss yst ysy yta yte ytn yts ytt ytv yva yve yvy yyb yye yys yyt yyy