-er -ey bbb bbe bbf bbi bbn bbo bbr bby be- beb bee bef bei ben beo ber bey bfb bfe bff bfi bfn bfo bfr bfy bi- bib bie bif bii bin bio bir biy bnb bne bnf bni bnn bno bnr bob boe bof boi bon boo bor boy brb bre brf bri brn bro brr bry by- bye byf byi byn byo byr ebb ebe ebf ebi ebn ebo ebr eby eeb eee eef een eeo eer eey ef- efb efe eff efi efo efr eib eie eif eii ein eio eir en- enb ene enf eni enn eno enr eny eo- eob eoe eof eoi eon eoo eor erb ere erf eri ern ero err ery eye eyn eyo eyr fbb fbe fbf fbi fbn fbo fbr feb fee fef fei fen feo fer fey ffe fff ffi ffn ffo ffr ffy fib fie fif fii fin fir fnb fne fnf fni fnn fnr fob foe fof foi fon foo for foy frb fre frf fri frn fro frr fry fy- fyb fye fyi fyn fyo i-f ibb ibe ibf ibi ibn ibo ibr iby ie- iee ief iei ien ier iey ifb ife iff ifi ifn ifo ifr ify iib iie iif iii iin iio iir in- inb ine inf ini inn ino inr iny io- iob ioe iof ioi ion ioo ior ir- irb ire irf iri irn iro irr iry iye iyo iyr iyy n-i nbb nbe nbf nbi nbn nbo nbr ne- neb nee nef nei nen neo ner ney nfb nfe nff nfi nfn nfo nfr nib nie nif nii nin nio nir nnb nne nnf nni nnn nno no- nob noe nof noi non noo nor noy nrb nre nrf nri nrn nro nrr nry nye nyf nyn nyo nyy o-i ob- obb obe obf obi obn obo obr oby oeb oee oef oei oen oeo oer oey of- ofb ofe off ofi ofn ofo ofr oib oie oif oii oin oio oir on- onb one onf oni onn ono onr ony oo- oob oof ooi oon ooo oor or- orb ore orf ori orn oro orr ory oye oyi oyo rbb rbe rbf rbi rbn rbo rbr re- reb ree ref rei ren reo rer rey rfb rfe rff rfi rfn rfo rfr rib rie rif rii rin rio rir riy rnb rni rnn rno rnr rny rob roe rof roi ron roo ror roy rrb rrf rri rrn rrr ry- rye ryf ryn ryo ryr ryy ybe ybf ybi ybr yby yeb yee yef yei yen yeo yer yey yfe yff yfr yie yif yii yin yio yir yne ynn yny yob yoe yof yoi yon yoo yor yoy yre yrf yrn yro yyb yye yyf yyy