-er -ji bbb bbe bbi bbr bbs bbt be- beb bee bei ber bes bet bi- bib bie bii bij bir bis bit bji bjj bjr bjs bjt brb bre bri brj brr brs brt bsb bse bsi bsj bsr bss bst btb bte bti btr bts btt ebb ebe ebi ebj ebr ebs ebt eeb eee eer ees eet eib eie eii eij eir eis eit eji ejt erb ere eri err ers ert es- esb ese esi esr ess est etb ete eti etj etr ets ett ibb ibe ibi ibj ibr ibs ibt ie- iee iei iej ier ies iet iib iie iii iij iir iis iit ijb ije iji ijs ijt ir- irb ire iri irj irr irs irt is- isb ise isi isj isr iss ist itb ite iti itj its itt j-i jbi jbj jbr jbs jbt jeb jee jei jej jer jes jet jib jie jii jij jir jis jit jjb jjj jjr jjs jrb jri jrr jrs jrt jsb jse jsi jsj jsr jss jst jtb jte jti jtr jts jtt rbb rbe rbi rbr rbs rbt re- reb ree rei rer res ret rib rie rii rir ris rit rjr rrb rri rrr rrs rrt rsb rse rsi rsj rsr rss rst rtb rte rti rtj rtr rts rtt sbb sbe sbi sbj sbr sbs sbt se- seb see sei sej ser ses set sib sie sii sij sir sis sit sjb sje sji sjj sjr sjs sjt sr- srb sre sri srj srr srs srt ss- ssb sse ssi ssj ssr sss sst stb ste sti stj str sts stt tbb tbe tbi tbj tbr tbs tbt te- teb tee tei tej ter tes tet tib tie tii tir tis tit tje tji tjr tjs trb tre tri trr trs trt tsb tse tsi tsj tsr tss tst ttb tte tti ttr tts ttt