-ey bbb bbd bbe bbk bbn bbo bby bdb bdd bde bdk bdo bdy be- beb bed bee bek ben beo bey bkb bke bkk bkn bko bnb bnd bne bnk bnn bno bob bod boe bok bon boo boy by- byd bye byk byn byo dbb dbd dbe dbk dbn dbo dby ddb ddd dde ddk ddn ddo ddy de- deb ded dee dek den deo dey dkb dke dkk dko dnb dnd dne dnk dnn dno dny dob dod doe dok don doo doy dy- dyb dyd dye dyk dyn dyo dyy ebb ebd ebe ebk ebn ebo eby ed- edb edd ede edk edn edo edy eeb eed eee eek een eeo eey ekb ekd eke eko eky en- enb end ene enk enn eno eny eo- eob eod eoe eok eon eoo eyd eye eyn eyo kbb kbd kbe kbk kbn kbo kdb kde kdk kdo kdy ke- keb ked kee kek ken keo key kkb kke kkk kkn kky kn- knd kne knk knn kno kob kod koe kok kon koo koy kyd kye kyn kyo nbb nbd nbe nbk nbn nbo ndb ndd nde ndk ndn ndo ndy ne- neb ned nee nek nen neo ney nke nkk nkn nko nky nnb nne nnk nnn nno no- nob nod noe nok non noo noy nyd nye nyk nyn nyo nyy ob- obb obd obe obk obn obo oby odb odd ode odn odo oeb oed oee oen oeo oey okb okd oke okk oko on- onb ond one onk onn ono ony oo- oob ood ook oon ooo oyd oye oyo ybe yby yde ydn ydo ydy yeb yed yee yek yen yeo yey ykk ykn ynd yne ynk ynn yny yob yod yoe yok yon yoo yoy yyb yye yyy