-er -ey bbb bbe bbi bbk bbn bbr bby be- beb bee bei bek ben ber bey bi- bib bie bii bik bin bir biy bkb bke bkk bkn bkr bnb bne bni bnk bnn bnr brb bre bri brk brn brr bry by- bye byi byk byn byr ebb ebe ebi ebk ebn ebr eby eeb eee eek een eer eey eib eie eii eik ein eir ekb eke eki ekr eky en- enb ene eni enk enn enr eny erb ere eri erk ern err ery eye eyn eyr ibb ibe ibi ibk ibn ibr iby ie- iee iei iek ien ier iey iib iie iii iin iir ikb ike iki ikk ikr in- inb ine ini ink inn inr iny ir- irb ire iri irk irn irr iry iye iyr iyy kbb kbe kbi kbk kbn kbr ke- keb kee kei kek ken ker key kib kie kii kik kin kir kkb kke kki kkk kkn kkr kky kn- kne kni knk knn knr kri krk krn krr kry kye kyn kyr n-i nbb nbe nbi nbk nbn nbr ne- neb nee nei nek nen ner ney nib nie nii nik nin nir nke nki nkk nkn nkr nky nnb nne nni nnk nnn nrb nre nri nrk nrn nrr nry nye nyk nyn nyy rbb rbe rbi rbk rbn rbr re- reb ree rei rek ren rer rey rib rie rii rik rin rir riy rkb rke rkk rky rnb rni rnn rnr rny rrb rri rrk rrn rrr ry- rye ryk ryn ryr ryy ybe ybi ybr yby yeb yee yei yek yen yer yey yie yii yin yir yki ykk ykn yne ynk ynn yny yre yrn yyb yye yyy