-er -ol bbb bbe bbl bbn bbo bbr bbs be- beb bee bel ben beo ber bes bjj bjn bjr bjs blb ble blj bll bln blo blr bls bnb bne bnj bnl bnn bno bnr bns bob boe boj bol bon boo bor bos brb bre brj brl brn bro brr brs bsb bse bsj bsl bsn bso bsr bss ebb ebe ebj ebl ebn ebo ebr ebs eeb eee eel een eeo eer ees ejl ejo elb ele ell eln elo elr els en- enb ene enl enn eno enr ens eo- eob eoe eol eon eoo eor eos erb ere erl ern ero err ers es- esb ese esl esn eso esr ess jbj jbl jbo jbr jbs jeb jee jej jel jen jeo jer jes jjb jjj jjl jjr jjs jlb jle jll jln jlo jlr jls jne jnj jnl jnn jno jnr jns job joe joj jol jon joo jor jos jrb jrl jrn jro jrr jrs jsb jse jsj jsl jsn jso jsr jss lbb lbe lbj lbl lbo lbr lbs leb lee lej lel len leo ler les lje ljj ljn ljs llb lle llj lll lln llo llr lls lnb lne lnl lnn lno lnr lns lob loe loj lol lon loo lor los lrb lrn lro lrr lrs lsb lse lsj lsl lsn lso lsr lss nbb nbe nbl nbn nbo nbr nbs ne- neb nee nej nel nen neo ner nes nje njl njn njs nlb nle nlj nll nln nlo nlr nls nnb nne nnl nnn nno nns no- nob noe noj nol non noo nor nos nrb nre nrj nrl nrn nro nrr nrs nsb nse nsl nsn nso nsr nss ob- obb obe obj obl obn obo obr obs oeb oee oel oen oeo oer oes ojb oje ojo ojs olb ole oll oln olo ols on- onb one onj onl onn ono onr ons oo- oob ool oon ooo oor oos or- orb ore orl orn oro orr ors os- osb ose osj osl osn oso osr oss rbb rbe rbl rbn rbo rbr rbs re- reb ree rel ren reo rer res rjr rle rll rln rlo rlr rls rnb rnn rno rnr rns rob roe roj rol ron roo ror ros rrb rrl rrn rrr rrs rsb rse rsj rsl rsn rso rsr rss sbb sbe sbj sbl sbn sbo sbr sbs se- seb see sej sel sen seo ser ses sjb sje sjj sjr sjs slb sle slj sll sln slo slr sls snb sne snj snl snn sno snr sns sob soe soj sol son soo sor sos sr- srb sre srj srl srn sro srr srs ss- ssb sse ssj ssl ssn sso ssr sss