-er -ey bbb bbe bbi bbn bbo bbr bbs bby be- beb bee bei ben beo ber bes bey bi- bib bie bii bin bio bir bis biy bnb bne bni bnn bno bnr bns bob boe boi bon boo bor bos boy brb bre bri brn bro brr brs bry bsb bse bsi bsn bso bsr bss bsy by- bye byi byn byo byr bys ebb ebe ebi ebn ebo ebr ebs eby eeb eee een eeo eer ees eey eib eie eii ein eio eir eis en- enb ene eni enn eno enr ens eny eo- eob eoe eoi eon eoo eor eos erb ere eri ern ero err ers ery es- esb ese esi esn eso esr ess esy eye eyn eyo eyr eys ibb ibe ibi ibn ibo ibr ibs iby ie- iee iei ien ier ies iey iib iie iii iin iio iir iis in- inb ine ini inn ino inr ins iny io- iob ioe ioi ion ioo ior ios ir- irb ire iri irn iro irr irs iry is- isb ise isi isn iso isr iss isy iye iyo iyr iys iyy n-i nbb nbe nbi nbn nbo nbr nbs ne- neb nee nei nen neo ner nes ney nib nie nii nin nio nir nis nnb nne nni nnn nno nns no- nob noe noi non noo nor nos noy nrb nre nri nrn nro nrr nrs nry nsb nse nsi nsn nso nsr nss nsy nye nyn nyo nys nyy o-i ob- obb obe obi obn obo obr obs oby oeb oee oei oen oeo oer oes oey oib oie oii oin oio oir ois on- onb one oni onn ono onr ons ony oo- oob ooi oon ooo oor oos or- orb ore ori orn oro orr ors ory os- osb ose osi osn oso osr oss oye oyi oyo oys rbb rbe rbi rbn rbo rbr rbs re- reb ree rei ren reo rer res rey rib rie rii rin rio rir ris riy rnb rni rnn rno rnr rns rny rob roe roi ron roo ror ros roy rrb rri rrn rrr rrs rsb rse rsi rsn rso rsr rss ry- rye ryn ryo ryr rys ryy sbb sbe sbi sbn sbo sbr sbs sby se- seb see sei sen seo ser ses sey sib sie sii sin sio sir sis snb sne sni snn sno snr sns sny sob soe soi son soo sor sos soy sr- srb sre sri srn sro srr srs sry ss- ssb sse ssi ssn sso ssr sss sy- syb sye syi syn syr sys ybe ybi ybr ybs yby yeb yee yei yen yeo yer yes yey yie yii yin yio yir yis yne ynn yns yny yob yoe yoi yon yoo yor yos yoy yre yrn yro yrs ysb yse ysi yso ysr yss ysy yyb yye yys yyy