-er -ol bbb bbd bbe bbg bbl bbn bbo bbr bbs bdb bdd bde bdg bdl bdo bdr bds be- beb bed bee beg bel ben beo ber bes bgb bgd bge bgg bgl bgn bgo bgr bgs blb bld ble blg bll bln blo blr bls bnb bnd bne bng bnl bnn bno bnr bns bob bod boe bog bol bon boo bor bos brb brd bre brg brl brn bro brr brs bsb bsd bse bsg bsl bsn bso bsr bss dbb dbd dbe dbg dbl dbn dbo dbr dbs ddb ddd dde ddg ddl ddn ddo ddr dds de- deb ded dee deg del den deo der des dgd dge dgg dgl dgn dgr dgs dl- dlb dld dle dlg dll dlo dlr dls dnb dnd dne dng dnl dnn dno dnr dns dob dod doe dog dol don doo dor dos drb drd dre drg drl drn dro drr drs dsb dsd dse dsg dsl dsn dso dsr dss ebb ebd ebe ebg ebl ebn ebo ebr ebs ed- edb edd ede edg edl edn edo edr eds eeb eed eee eeg eel een eeo eer ees egb egd ege egg egl egn ego egr egs elb eld ele elg ell eln elo elr els en- enb end ene eng enl enn eno enr ens eo- eob eod eoe eog eol eon eoo eor eos erb erd ere erg erl ern ero err ers es- esb esd ese esg esl esn eso esr ess g-d gbd gbe gbg gbl gbn gbo gbr gbs gdb gdd gde gdl gdn gdo gdr gds ge- geb ged gee geg gel gen geo ger ges ggb ggd ggg ggn ggo ggr ggs glb gld gle glg gll gln glo glr gls gnb gnd gne gnl gnn gno gnr gns gob god goe gog gol gon goo gor gos grb grd gre grg grl grn gro grr grs gsb gsd gse gsg gsl gsn gso gsr gss lbb lbd lbe lbg lbl lbo lbr lbs ldb ldd lde ldg ldl ldn ldo ldr lds leb led lee leg lel len leo ler les lgb lgd lge lgg lgl lgn lgo lgr lgs llb lld lle llg lll lln llo llr lls lnb lnd lne lng lnl lnn lno lnr lns lob lod loe log lol lon loo lor los lrb lrd lrg lrn lro lrr lrs lsb lsd lse lsg lsl lsn lso lsr lss nbb nbd nbe nbg nbl nbn nbo nbr nbs ndb ndd nde ndg ndl ndn ndo ndr nds ne- neb ned nee neg nel nen neo ner nes ngb ngd nge ngg ngl ngn ngo ngs nlb nld nle nlg nll nln nlo nlr nls nnb nne nng nnl nnn nno nns no- nob nod noe nog nol non noo nor nos nrb nrd nre nrg nrl nrn nro nrr nrs nsb nsd nse nsg nsl nsn nso nsr nss ob- obb obd obe obg obl obn obo obr obs odb odd ode odg odl odn odo odr ods oeb oed oee oeg oel oen oeo oer oes ogd oge ogg ogl ogn ogo ogs olb old ole olg oll oln olo ols on- onb ond one ong onl onn ono onr ons oo- oob ood oog ool oon ooo oor oos or- orb ord ore org orl orn oro orr ors os- osb osd ose osg osl osn oso osr oss rbb rbd rbe rbg rbl rbn rbo rbr rbs rdb rdd rde rdg rdl rdn rdo rdr rds re- reb red ree reg rel ren reo rer res rgb rgd rge rgg rgn rgo rgr rgs rld rle rlg rll rln rlo rlr rls rnb rnd rng rnn rno rnr rns rob rod roe rog rol ron roo ror ros rrb rrd rrg rrl rrn rrr rrs rsb rsd rse rsg rsl rsn rso rsr rss sbb sbd sbe sbg sbl sbn sbo sbr sbs sdb sdd sde sdg sdl sdn sdo sdr sds se- seb sed see seg sel sen seo ser ses sgb sgd sge sgg sgl sgn sgo sgr sgs slb sld sle slg sll sln slo slr sls snb snd sne sng snl snn sno snr sns sob sod soe sog sol son soo sor sos sr- srb srd sre srg srl srn sro srr srs ss- ssb ssd sse ssg ssl ssn sso ssr sss