-er -ey bbb bbe bbi bbk bbn bbo bbr bby be- beb bee bei bek ben beo ber bey bez bi- bib bie bii bik bin bio bir biy biz bkb bke bkk bkn bko bkr bnb bne bni bnk bnn bno bnr bnz bob boe boi bok bon boo bor boy boz brb bre bri brk brn bro brr bry brz by- bye byi byk byn byo byr byz bze bzn bzo bzr bzz ebb ebe ebi ebk ebn ebo ebr eby eeb eee eek een eeo eer eey eib eie eii eik ein eio eir ekb eke eki eko ekr eky en- enb ene eni enk enn eno enr eny enz eo- eob eoe eoi eok eon eoo eor erb ere eri erk ern ero err ery erz eye eyn eyo eyr eze ezo ezr ezz ibb ibe ibi ibk ibn ibo ibr iby ibz ie- iee iei iek ien ier iey iib iie iii iin iio iir ikb ike iki ikk iko ikr in- inb ine ini ink inn ino inr iny io- iob ioe ioi ion ioo ior ir- irb ire iri irk irn iro irr iry iye iyo iyr iyy ize izi izo izy izz k-z kbb kbe kbi kbk kbn kbo kbr kbz ke- keb kee kei kek ken keo ker key kez kib kie kii kik kin kio kir kiz kkb kke kki kkk kkn kkr kky kn- kne kni knk knn kno knr kob koe koi kok kon koo kor koy koz kri krk krn kro krr kry kye kyn kyo kyr kyz kzo kzy n-i nbb nbe nbi nbk nbn nbo nbr ne- neb nee nei nek nen neo ner ney nez nib nie nii nik nin nio nir niz nke nki nkk nkn nko nkr nky nnb nne nni nnk nnn nno nnz no- nob noe noi nok non noo nor noy noz nrb nre nri nrk nrn nro nrr nry nrz nye nyk nyn nyo nyy nzb nze nzi nzo nzz o-i ob- obb obe obi obk obn obo obr oby oeb oee oei oen oeo oer oey oib oie oii oik oin oio oir oiz okb oke oki okk oko okr on- onb one oni onk onn ono onr ony oo- oob ooi ook oon ooo oor or- orb ore ori ork orn oro orr ory orz oye oyi oyo oze ozo ozz rbb rbe rbi rbk rbn rbo rbr re- reb ree rei rek ren reo rer rey rez rib rie rii rik rin rio rir riy riz rkb rke rkk rko rky rkz rnb rni rnn rno rnr rny rnz rob roe roi rok ron roo ror roy roz rrb rri rrk rrn rrr ry- rye ryk ryn ryo ryr ryy ryz rzb rze rzo rzy ybe ybi ybr yby ybz yeb yee yei yek yen yeo yer yey yez yie yii yin yio yir yiz yki ykk ykn yne ynk ynn yny yob yoe yoi yok yon yoo yor yoy yre yrn yro yyb yye yyy yyz yzb yzr yzy zbb zbr zby zeb zee zek zen zeo zer zez zib zie zik zin zio zir ziz zne znn zno zo- zob zoe zoi zok zon zoo zor zro zzr zzy zzz