-er -ol bbb bbd bbe bbg bbi bbl bbo bbr bdb bdd bde bdg bdi bdl bdo bdr be- beb bed bee beg bei bel beo ber bgb bgd bge bgg bgi bgl bgo bgr bi- bib bid bie big bii bil bio bir blb bld ble blg bli bll blo blr bob bod boe bog boi bol boo bor brb brd bre brg bri brl bro brr dbb dbd dbe dbg dbi dbl dbo dbr ddb ddd dde ddg ddi ddl ddo ddr de- deb ded dee deg dei del deo der dgd dge dgg dgi dgl dgr di- dib did die dig dii dil dio dir dl- dlb dld dle dlg dli dll dlo dlr dob dod doe dog doi dol doo dor drb drd dre drg dri drl dro drr ebb ebd ebe ebg ebi ebl ebo ebr ed- edb edd ede edg edi edl edo edr eeb eed eee eeg eel eeo eer egb egd ege egg egi egl ego egr eib eid eie eig eii eil eio eir elb eld ele elg eli ell elo elr eo- eob eod eoe eog eoi eol eoo eor erb erd ere erg eri erl ero err g-d gbd gbe gbg gbi gbl gbo gbr gdb gdd gde gdi gdl gdo gdr ge- geb ged gee geg gei gel geo ger ggb ggd ggg ggi ggo ggr gib gid gie gig gii gil gio gir glb gld gle glg gli gll glo glr gob god goe gog goi gol goo gor grb grd gre grg gri grl gro grr i-d ibb ibd ibe ibg ibi ibl ibo ibr idb idd ide idg idi idl ido idr ie- ied iee ieg iei iel ier igb igd ige igg igi igl igo igr iib iid iie iii iil iio iir il- ilb ild ile ilg ili ill ilo ilr io- iob iod ioe iog ioi iol ioo ior ir- irb ird ire irg iri irl iro irr lbb lbd lbe lbg lbi lbl lbo lbr ldb ldd lde ldg ldi ldl ldo ldr leb led lee leg lei lel leo ler lgb lgd lge lgg lgi lgl lgo lgr lib lid lie lig lii lil lio lir llb lld lle llg lli lll llo llr lob lod loe log loi lol loo lor lrb lrd lrg lri lro lrr o-i ob- obb obd obe obg obi obl obo obr odb odd ode odg odi odl odo odr oeb oed oee oeg oei oel oeo oer ogd oge ogg ogi ogl ogo oib oid oie oii oil oio oir olb old ole olg oli oll olo oo- oob ood oog ooi ool ooo oor or- orb ord ore org ori orl oro orr rbb rbd rbe rbg rbi rbl rbo rbr rdb rdd rde rdg rdi rdl rdo rdr re- reb red ree reg rei rel reo rer rgb rgd rge rgg rgi rgo rgr rib rid rie rig rii ril rio rir rld rle rlg rli rll rlo rlr rob rod roe rog roi rol roo ror rrb rrd rrg rri rrl rrr