-ey bbb bbd bbe bbi bbo bbs bbt bby bdb bdd bde bdi bdo bds bdt bdy be- beb bed bee bei beo bes bet bey bi- bib bid bie bii bio bis bit biy bob bod boe boi boo bos bot boy bsb bsd bse bsi bso bss bst bsy btb btd bte bti bto bts btt bty by- byd bye byi byo bys byt dbb dbd dbe dbi dbo dbs dbt dby ddb ddd dde ddi ddo dds ddt ddy de- deb ded dee dei deo des det dey di- dib did die dii dio dis dit diy dob dod doe doi doo dos dot doy dsb dsd dse dsi dso dss dst dsy dtb dtd dte dti dto dts dtt dty dy- dyb dyd dye dyo dys dyy ebb ebd ebe ebi ebo ebs ebt eby ed- edb edd ede edi edo eds edt edy eeb eed eee eeo ees eet eey eib eid eie eii eio eis eit eo- eob eod eoe eoi eoo eos eot es- esb esd ese esi eso ess est esy etb etd ete eti eto ets ett ety eyd eye eyo eys eyt i-d ibb ibd ibe ibi ibo ibs ibt iby idb idd ide idi ido ids idt idy ie- ied iee iei ies iet iey iib iid iie iii iio iis iit io- iob iod ioe ioi ioo ios iot is- isb isd ise isi iso iss ist isy itb itd ite iti ito its itt ity iye iyo iys iyt iyy o-i ob- obb obd obe obi obo obs obt oby odb odd ode odi odo ods odt oeb oed oee oei oeo oes oet oey oib oid oie oii oio ois oit oo- oob ood ooi ooo oos oot os- osb osd ose osi oso oss ost ot- otb otd ote oti oto ots ott oyd oye oyi oyo oys sbb sbd sbe sbi sbo sbs sbt sby sdb sdd sde sdi sdo sds sdt sdy se- seb sed see sei seo ses set sey sib sid sie sii sio sis sit sob sod soe soi soo sos sot soy ss- ssb ssd sse ssi sso sss sst stb std ste sti sto sts stt sty sy- syb syd sye syi sys syt tbb tbd tbe tbi tbo tbs tbt tdb tdd tde tdi tdo tds tdt tdy te- teb ted tee tei teo tes tet tey tib tid tie tii tio tis tit tiy to- tob tod toe toi too tos tot toy tsb tsd tse tsi tso tss tst tsy ttb ttd tte tti tto tts ttt tty tyd tye tyo tys tyt ybe ybi ybs yby yde ydo yds ydt ydy yeb yed yee yei yeo yes yet yey yid yie yii yio yis yit yob yod yoe yoi yoo yos yot yoy ysb yse ysi yso yss yst ysy ytd yte yto yts ytt yyb yye yys yyt yyy