-er -ol b-p bbb bbd bbe bbf bbl bbn bbo bbp bbr bbs bdb bdd bde bdf bdl bdo bdp bdr bds be- beb bed bee bef bel ben beo bep ber bes bfb bfd bfe bff bfl bfn bfo bfp bfr bfs blb bld ble blf bll bln blo blp blr bls bnb bnd bne bnf bnl bnn bno bnp bnr bns bob bod boe bof bol bon boo bop bor bos bpb bpd bpe bpf bpl bpn bpo bpp bpr bps brb brd bre brf brl brn bro brp brr brs bsb bsd bse bsf bsl bsn bso bsp bsr bss dbb dbd dbe dbf dbl dbn dbo dbp dbr dbs ddb ddd dde ddf ddl ddn ddo ddp ddr dds de- deb ded dee def del den deo dep der des dfb dfd dfe dff dfl dfn dfo dfp dfr dfs dl- dlb dld dle dlf dll dlo dlp dlr dls dnb dnd dne dnf dnl dnn dno dnp dnr dns dob dod doe dof dol don doo dop dor dos dpb dpd dpe dpf dpl dpn dpo dpp dpr dps drb drd dre drl drn dro drp drr drs dsb dsd dse dsf dsl dsn dso dsp dsr dss ebb ebd ebe ebf ebl ebn ebo ebp ebr ebs ed- edb edd ede edf edl edn edo edp edr eds eeb eed eee eef eel een eeo eep eer ees ef- efb efd efe eff efl efo efp efr efs elb eld ele elf ell eln elo elp elr els en- enb end ene enf enl enn eno enp enr ens eo- eob eod eoe eof eol eon eoo eop eor eos ep- epb epd epe epf epl epn epo epp epr eps erb erd ere erf erl ern ero erp err ers es- esb esd ese esf esl esn eso esp esr ess fbb fbd fbe fbf fbl fbn fbo fbp fbr fbs fdb fdd fde fdf fdl fdn fdo fdp fdr fds feb fed fee fef fel fen feo fep fer fes ffd ffe fff ffl ffn ffo ffp ffr ffs flb fld fle flf fll fln flo flp flr fls fnb fnd fne fnf fnl fnn fnp fnr fns fob foe fof fol fon foo fop for fos fpb fpd fpe fpl fpn fpo fpp fpr fps frb frd fre frf frl frn fro frp frr frs fsb fsd fse fsf fsl fsn fso fsp fsr fss l-p lbb lbd lbe lbf lbl lbo lbp lbr lbs ldb ldd lde ldf ldl ldn ldo ldp ldr lds leb led lee lef lel len leo lep ler les lfb lfd lfe lff lfl lfn lfo lfp lfr lfs llb lld lle llf lll lln llo llp llr lls lnb lnd lne lnl lnn lno lnp lnr lns lob lod loe lof lol lon loo lop lor los lpb lpd lpe lpf lpl lpn lpo lpp lpr lps lrb lrd lrf lrn lro lrp lrr lrs lsb lsd lse lsf lsl lsn lso lsp lsr lss nbb nbd nbe nbf nbl nbn nbo nbp nbr nbs ndb ndd nde ndf ndl ndn ndo ndp ndr nds ne- neb ned nee nef nel nen neo nep ner nes nfb nfd nfe nff nfl nfn nfo nfp nfr nfs nlb nld nle nlf nll nln nlo nlp nlr nls nnb nne nnf nnl nnn nno nnp nns no- nob nod noe nof nol non noo nop nor nos npb npd npe npf npl npn npo npp npr nps nrb nrd nre nrf nrl nrn nro nrp nrr nrs nsb nsd nse nsf nsl nsn nso nsp nsr nss ob- obb obd obe obf obl obn obo obp obr obs odb odd ode odf odl odn odo odp odr ods oeb oed oee oef oel oen oeo oep oer oes of- ofb ofd ofe off ofl ofn ofo ofp ofr ofs olb old ole olf oll oln olo olp ols on- onb ond one onf onl onn ono onp onr ons oo- oob ood oof ool oon ooo oop oor oos op- opb opd ope opf opl opn opo opp opr ops or- orb ord ore orf orl orn oro orp orr ors os- osb osd ose osf osl osn oso osp osr oss p-p pbb pbd pbe pbf pbl pbn pbo pbp pbr pbs pdb pdd pde pdf pdl pdn pdo pdp pdr pds peb ped pee pef pel pen peo pep per pes pfb pfd pfe pff pfl pfn pfo pfp pfr pfs plb pld ple plf pll pln plo plp plr pls pn- pnb pnd pne pnf pnl pnn pno pnp pnr pns pob pod poe pof pol pon poo pop por pos ppb ppd ppe ppf ppl ppn ppo ppp ppr pps prb prd pre prf prl prn pro prp prr prs ps- psb psd pse psf psl psn pso psp psr pss rbb rbd rbe rbf rbl rbn rbo rbp rbr rbs rdb rdd rde rdf rdl rdn rdo rdp rdr rds re- reb red ree ref rel ren reo rep rer res rfb rfd rfe rff rfl rfn rfo rfp rfr rfs rld rle rlf rll rln rlo rlp rlr rls rnb rnd rnn rno rnp rnr rns rob rod roe rof rol ron roo rop ror ros rpb rpd rpe rpf rpl rpn rpo rpp rpr rps rrb rrd rrf rrl rrn rrp rrr rrs rsb rsd rse rsf rsl rsn rso rsp rsr rss sbb sbd sbe sbf sbl sbn sbo sbp sbr sbs sdb sdd sde sdf sdl sdn sdo sdp sdr sds se- seb sed see sef sel sen seo sep ser ses sfb sfd sfe sff sfl sfn sfo sfp sfr sfs slb sld sle slf sll sln slo slp slr sls snb snd sne snf snl snn sno snp snr sns sob sod soe sof sol son soo sop sor sos spb spd spe spf spl spn spo spp spr sps sr- srb srd sre srf srl srn sro srp srr srs ss- ssb ssd sse