-ey bbb bbe bbi bbo bbs bbt bby be- beb bee bei beo bes bet bev bey bi- bib bie bii bio bis bit biv biy bob boe boi boo bos bot bov boy bsb bse bsi bso bss bst bsv bsy btb bte bti bto bts btt btv bty bvb bve bvi bvo bvs bvt bvv by- bye byi byo bys byt ebb ebe ebi ebo ebs ebt ebv eby eeb eee eeo ees eet eev eey eib eie eii eio eis eit eiv eo- eob eoe eoi eoo eos eot es- esb ese esi eso ess est esv esy etb ete eti eto ets ett etv ety evb eve evi evo evs evt evv evy eye eyo eys eyt i-v ibb ibe ibi ibo ibs ibt ibv iby ie- iee iei ies iet iev iey iib iie iii iio iis iit io- iob ioe ioi ioo ios iot iov is- isb ise isi iso iss ist isv isy itb ite iti ito its itt itv ity ivb ive ivi ivo ivs ivt ivv ivy iye iyo iys iyt iyy o-i ob- obb obe obi obo obs obt obv oby oeb oee oei oeo oes oet oey oib oie oii oio ois oit oiv oo- oob ooi ooo oos oot oov os- osb ose osi oso oss ost osv ot- otb ote oti oto ots ott otv ov- ovb ove ovi ovo ovs ovv oye oyi oyo oys sbb sbe sbi sbo sbs sbt sbv sby se- seb see sei seo ses set sev sey sib sie sii sio sis sit siv sob soe soi soo sos sot sov soy ss- ssb sse ssi sso sss sst ssv stb ste sti sto sts stt stv sty svb sve svi svo svs svt svv svy sy- syb sye syi sys syt tbb tbe tbi tbo tbs tbt tbv te- teb tee tei teo tes tet tev tey tib tie tii tio tis tit tiv tiy to- tob toe toi too tos tot tov toy tsb tse tsi tso tss tst tsv tsy ttb tte tti tto tts ttt ttv tty tvb tve tvi tvo tvs tvt tvy tye tyo tys tyt v-e vbi vbo vbs vbv veb vee vei veo ves vet vey vi- vib vie vii vio vis vit viv viy vob voe voi voo vos vot vov voy vsb vse vsi vso vss vst vsv vtb vte vti vto vts vtt vtv vty vvb vvi vvo vvs vvt vvv vye vyt ybe ybi ybs yby yeb yee yei yeo yes yet yev yey yie yii yio yis yit yob yoe yoi yoo yos yot yoy ysb yse ysi yso yss yst ysy yte yto yts ytt ytv yve yvi yvo yvy yyb yye yys yyt yyy