-er -ol bbb bbe bbk bbl bbo bbr bbs bbt be- beb bee bek bel beo ber bes bet bjj bjk bjr bjs bjt bkb bke bkk bkl bko bkr bks bkt blb ble blj blk bll blo blr bls blt bob boe boj bok bol boo bor bos bot brb bre brj brk brl bro brr brs brt bsb bse bsj bsk bsl bso bsr bss bst btb bte btk btl bto btr bts btt ebb ebe ebj ebk ebl ebo ebr ebs ebt eeb eee eek eel eeo eer ees eet ejl ejo ejt ekb eke ekl eko ekr eks ekt elb ele elk ell elo elr els elt eo- eob eoe eok eol eoo eor eos eot erb ere erk erl ero err ers ert es- esb ese esk esl eso esr ess est etb ete etj etk etl eto etr ets ett jbj jbk jbl jbo jbr jbs jbt jeb jee jej jek jel jeo jer jes jet jjb jjj jjk jjl jjr jjs jkb jkk jkl jko jkr jks jkt jlb jle jll jlo jlr jls jlt job joe joj jok jol joo jor jos jot jrb jrk jrl jro jrr jrs jrt jsb jse jsj jsk jsl jso jsr jss jst jtb jte jtk jtl jtr jts jtt k-t kbb kbe kbk kbl kbo kbr kbs ke- keb kee kek kel keo ker kes ket kjb kje kjr kjs kkb kke kkk kkl kkr kks kkt kl- klb klo klr kls klt kob koe kok kol koo kor kos kot krk krl kro krr krs krt ksb kse ksk ksl kso ksr kss kst ktb kte ktj ktk ktl kto ktr kts ktt lbb lbe lbj lbk lbl lbo lbr lbs lbt leb lee lej lek lel leo ler les let lje ljj ljs lkb lkl lkr lks lkt llb lle llj llk lll llo llr lls llt lob loe loj lok lol loo lor los lot lrb lrk lro lrr lrs lrt lsb lse lsj lsk lsl lso lsr lss lst ltb lte ltk ltl lto ltr lts ltt ob- obb obe obj obk obl obo obr obs obt oeb oee oel oeo oer oes oet ojb oje ojo ojs okb oke okj okk okl oko okr oks olb ole olk oll olo ols olt oo- oob ook ool ooo oor oos oot or- orb ore ork orl oro orr ors ort os- osb ose osj osk osl oso osr oss ost ot- otb ote otk otl oto otr ots ott rbb rbe rbk rbl rbo rbr rbs rbt re- reb ree rek rel reo rer res ret rjk rjr rkb rke rkk rko rks rkt rle rll rlo rlr rls rlt rob roe roj rok rol roo ror ros rot rrb rrk rrl rrr rrs rrt rsb rse rsj rsk rsl rso rsr rss rst rtb rte rtj rtk rtl rto rtr rts rtt sbb sbe sbj sbk sbl sbo sbr sbs sbt se- seb see sej sek sel seo ser ses set sjb sje sjj sjk sjr sjs sjt sk- skb ske skj skk skl sko skr sks skt slb sle slj slk sll slo slr sls slt sob soe soj sok sol soo sor sos sot sr- srb sre srj srk srl sro srr srs srt ss- ssb sse ssj ssk ssl sso ssr sss sst stb ste stj stk stl sto str sts stt tbb tbe tbj tbk tbl tbo tbr tbs tbt te- teb tee tej tek tel teo ter tes tet tje tjo tjr tjs tkb tke tkk tkl tko tkr tks tkt tle tlj tlk tll tlo tlr tls tlt to- tob toe toj tok tol too tor tos tot trb tre trk trl tro trr trs trt tsb tse tsj tsk tsl tso tsr tss tst ttb tte ttk ttl tto ttr tts ttt