-er -ji eee eek eer ees eie eii eij eik eir eis eji eke eki ekr eks ere eri erk err ers es- ese esi esk esr ess ie- iee iei iej iek ier ies iie iii iij iir iis ije iji ijk ijs ike iki ikk ikr iks ir- ire iri irj irk irr irs is- ise isi isj isk isr iss j-i jee jei jej jek jer jes jie jii jij jir jis jjj jjk jjr jjs jkk jkr jks jri jrk jrr jrs jse jsi jsj jsk jsr jss ke- kee kei kek ker kes kie kii kij kik kir kis kje kji kjr kjs kke kki kkk kkr kks kri krk krr krs kse ksi ksk ksr kss re- ree rei rek rer res rie rii rik rir ris rjk rjr rke rkk rks rri rrk rrr rrs rse rsi rsj rsk rsr rss se- see sei sej sek ser ses sie sii sij sik sir sis sje sji sjj sjk sjr sjs sk- ske ski skj skk skr sks sr- sre sri srj srk srr srs ss- sse ssi ssj ssk ssr sss