-ol bbb bbe bbk bbl bbo bbs be- beb bee bek bel beo bes bjj bjk bjs bkb bke bkk bkl bko bks blb ble blj blk bll blo bls bob boe boj bok bol boo bos bsb bse bsj bsk bsl bso bss ebb ebe ebj ebk ebl ebo ebs eeb eee eek eel eeo ees ejl ejo ekb eke ekl eko eks elb ele elk ell elo els eo- eob eoe eok eol eoo eos es- esb ese esk esl eso ess jbj jbk jbl jbo jbs jeb jee jej jek jel jeo jes jjb jjj jjk jjl jjs jkb jkk jkl jko jks jlb jle jll jlo jls job joe joj jok jol joo jos jsb jse jsj jsk jsl jso jss kbb kbe kbk kbl kbo kbs ke- keb kee kek kel keo kes kjb kje kjs kkb kke kkk kkl kks kl- klb klo kls kob koe kok kol koo kos ksb kse ksk ksl kso kss lbb lbe lbj lbk lbl lbo lbs leb lee lej lek lel leo les lje ljj ljs lkb lkl lks llb lle llj llk lll llo lls lob loe loj lok lol loo los lsb lse lsj lsk lsl lso lss ob- obb obe obj obk obl obo obs oeb oee oel oeo oes ojb oje ojo ojs okb oke okj okk okl oko oks olb ole olk oll olo ols oo- oob ook ool ooo oos os- osb ose osj osk osl oso oss sbb sbe sbj sbk sbl sbo sbs se- seb see sej sek sel seo ses sjb sje sjj sjk sjs sk- skb ske skj skk skl sko sks slb sle slj slk sll slo sls sob soe soj sok sol soo sos ss- ssb sse ssj ssk ssl sso sss