-er -ol bbb bbd bbe bbg bbi bbl bbo bbr bbs bdb bdd bde bdg bdi bdl bdo bdr bds be- beb bed bee beg bei bel beo ber bes bgb bgd bge bgg bgi bgl bgo bgr bgs bi- bib bid bie big bii bil bio bir bis blb bld ble blg bli bll blo blr bls bob bod boe bog boi bol boo bor bos brb brd bre brg bri brl bro brr brs bsb bsd bse bsg bsi bsl bso bsr bss dbb dbd dbe dbg dbi dbl dbo dbr dbs ddb ddd dde ddg ddi ddl ddo ddr dds de- deb ded dee deg dei del deo der des dgd dge dgg dgi dgl dgr dgs di- dib did die dig dii dil dio dir dis dl- dlb dld dle dlg dli dll dlo dlr dls dob dod doe dog doi dol doo dor dos drb drd dre drg dri drl dro drr drs dsb dsd dse dsg dsi dsl dso dsr dss ebb ebd ebe ebg ebi ebl ebo ebr ebs ed- edb edd ede edg edi edl edo edr eds eeb eed eee eeg eel eeo eer ees egb egd ege egg egi egl ego egr egs eib eid eie eig eii eil eio eir eis elb eld ele elg eli ell elo elr els eo- eob eod eoe eog eoi eol eoo eor eos erb erd ere erg eri erl ero err ers es- esb esd ese esg esi esl eso esr ess g-d gbd gbe gbg gbi gbl gbo gbr gbs gdb gdd gde gdi gdl gdo gdr gds ge- geb ged gee geg gei gel geo ger ges ggb ggd ggg ggi ggo ggr ggs gib gid gie gig gii gil gio gir gis glb gld gle glg gli gll glo glr gls gob god goe gog goi gol goo gor gos grb grd gre grg gri grl gro grr grs gsb gsd gse gsg gsi gsl gso gsr gss i-d ibb ibd ibe ibg ibi ibl ibo ibr ibs idb idd ide idg idi idl ido idr ids ie- ied iee ieg iei iel ier ies igb igd ige igg igi igl igo igr igs iib iid iie iii iil iio iir iis il- ilb ild ile ilg ili ill ilo ilr ils io- iob iod ioe iog ioi iol ioo ior ios ir- irb ird ire irg iri irl iro irr irs is- isb isd ise isg isi isl iso isr iss lbb lbd lbe lbg lbi lbl lbo lbr lbs ldb ldd lde ldg ldi ldl ldo ldr lds leb led lee leg lei lel leo ler les lgb lgd lge lgg lgi lgl lgo lgr lgs lib lid lie lig lii lil lio lir lis llb lld lle llg lli lll llo llr lls lob lod loe log loi lol loo lor los lrb lrd lrg lri lro lrr lrs lsb lsd lse lsg lsi lsl lso lsr lss o-i ob- obb obd obe obg obi obl obo obr obs odb odd ode odg odi odl odo odr ods oeb oed oee oeg oei oel oeo oer oes ogd oge ogg ogi ogl ogo ogs oib oid oie oii oil oio oir ois olb old ole olg oli oll olo ols oo- oob ood oog ooi ool ooo oor oos or- orb ord ore org ori orl oro orr ors os- osb osd ose osg osi osl oso osr oss rbb rbd rbe rbg rbi rbl rbo rbr rbs rdb rdd rde rdg rdi rdl rdo rdr rds re- reb red ree reg rei rel reo rer res rgb rgd rge rgg rgi rgo rgr rgs rib rid rie rig rii ril rio rir ris rld rle rlg rli rll rlo rlr rls rob rod roe rog roi rol roo ror ros rrb rrd rrg rri rrl rrr rrs rsb rsd rse rsg rsi rsl rso rsr rss sbb sbd sbe sbg sbi sbl sbo sbr sbs sdb sdd sde sdg sdi sdl sdo sdr sds se- seb sed see seg sei sel seo ser ses sgb sgd sge sgg sgi sgl sgo sgr sgs sib sid sie sig sii sil sio sir sis slb sld sle slg sli sll slo slr sls sob sod soe sog soi sol soo sor sos sr- srb srd sre srg sri srl sro srr srs ss- ssb ssd sse ssg ssi ssl sso ssr sss