-er -ji bbb bbe bbi bbk bbn bbo bbr bbs be- beb bee bei bek ben beo ber bes bi- bib bie bii bij bik bin bio bir bis bji bjj bjk bjn bjr bjs bkb bke bkk bkn bko bkr bks bnb bne bni bnj bnk bnn bno bnr bns bob boe boi boj bok bon boo bor bos brb bre bri brj brk brn bro brr brs bsb bse bsi bsj bsk bsn bso bsr bss ebb ebe ebi ebj ebk ebn ebo ebr ebs eeb eee eek een eeo eer ees eib eie eii eij eik ein eio eir eis eji ejo ekb eke eki eko ekr eks en- enb ene eni enk enn eno enr ens eo- eob eoe eoi eok eon eoo eor eos erb ere eri erk ern ero err ers es- esb ese esi esk esn eso esr ess ibb ibe ibi ibj ibk ibn ibo ibr ibs ie- iee iei iej iek ien ier ies iib iie iii iij iin iio iir iis ijb ije iji ijk ijn ijo ijs ikb ike iki ikk iko ikr iks in- inb ine ini inj ink inn ino inr ins io- iob ioe ioi ioj ion ioo ior ios ir- irb ire iri irj irk irn iro irr irs is- isb ise isi isj isk isn iso isr iss j-i jbi jbj jbk jbo jbr jbs jeb jee jei jej jek jen jeo jer jes jib jie jii jij jin jio jir jis jjb jjj jjk jjr jjs jkb jkk jkn jko jkr jks jne jnj jnn jno jnr jns job joe joi joj jok jon joo jor jos jrb jri jrk jrn jro jrr jrs jsb jse jsi jsj jsk jsn jso jsr jss kbb kbe kbi kbk kbn kbo kbr kbs ke- keb kee kei kek ken keo ker kes kib kie kii kij kik kin kio kir kis kjb kje kji kjr kjs kkb kke kki kkk kkn kkr kks kn- kne kni knk knn kno knr kob koe koi kok kon koo kor kos kri krk krn kro krr krs ksb kse ksi ksk ksn kso ksr kss n-i nbb nbe nbi nbk nbn nbo nbr nbs ne- neb nee nei nej nek nen neo ner nes nib nie nii nik nin nio nir nis nje njk njn njs nke nki nkj nkk nkn nko nkr nks nnb nne nni nnk nnn nno nns no- nob noe noi noj nok non noo nor nos nrb nre nri nrj nrk nrn nro nrr nrs nsb nse nsi nsk nsn nso nsr nss o-i ob- obb obe obi obj obk obn obo obr obs oeb oee oei oen oeo oer oes oib oie oii oik oin oio oir ois ojb oje oji ojo ojs okb oke oki okj okk oko okr oks on- onb one oni onj onk onn ono onr ons oo- oob ooi ook oon ooo oor oos or- orb ore ori ork orn oro orr ors os- osb ose osi osj osk osn oso osr oss rbb rbe rbi rbk rbn rbo rbr rbs re- reb ree rei rek ren reo rer res rib rie rii rik rin rio rir ris rjk rjr rkb rke rkk rko rks rnb rni rnn rno rnr rns rob roe roi roj rok ron roo ror ros rrb rri rrk rrn rrr rrs rsb rse rsi rsj rsk rsn rso rsr rss sbb sbe sbi sbj sbk sbn sbo sbr sbs se- seb see sei sej sek sen seo ser ses sib sie sii sij sik sin sio sir sis sjb sje sji sjj sjk sjr sjs sk- skb ske ski skj skk sko skr sks snb sne sni snj snk snn sno snr sns sob soe soi soj sok son soo sor sos sr- srb sre sri srj srk srn sro srr srs ss- ssb sse ssi ssj ssk ssn sso ssr sss