-er -ol bbb bbd bbe bbi bbl bbo bbr bdb bdd bde bdi bdl bdo bdr be- beb bed bee bei bel beo ber bi- bib bid bie bii bil bio bir blb bld ble bli bll blo blr bob bod boe boi bol boo bor brb brd bre bri brl bro brr dbb dbd dbe dbi dbl dbo dbr ddb ddd dde ddi ddl ddo ddr de- deb ded dee dei del deo der di- dib did die dii dil dio dir dl- dlb dld dle dli dll dlo dlr dob dod doe doi dol doo dor drb drd dre dri drl dro drr ebb ebd ebe ebi ebl ebo ebr ed- edb edd ede edi edl edo edr eeb eed eee eel eeo eer eib eid eie eii eil eio eir elb eld ele eli ell elo elr eo- eob eod eoe eoi eol eoo eor erb erd ere eri erl ero err i-d ibb ibd ibe ibi ibl ibo ibr idb idd ide idi idl ido idr ie- ied iee iei iel ier iib iid iie iii iil iio iir il- ilb ild ile ili ill ilo ilr io- iob iod ioe ioi iol ioo ior ir- irb ird ire iri irl iro irr lbb lbd lbe lbi lbl lbo lbr ldb ldd lde ldi ldl ldo ldr leb led lee lei lel leo ler lib lid lie lii lil lio lir llb lld lle lli lll llo llr lob lod loe loi lol loo lor lrb lrd lri lro lrr o-i ob- obb obd obe obi obl obo obr odb odd ode odi odl odo odr oeb oed oee oei oel oeo oer oib oid oie oii oil oio oir olb old ole oli oll olo oo- oob ood ooi ool ooo oor or- orb ord ore ori orl oro orr rbb rbd rbe rbi rbl rbo rbr rdb rdd rde rdi rdl rdo rdr re- reb red ree rei rel reo rer rib rid rie rii ril rio rir rld rle rli rll rlo rlr rob rod roe roi rol roo ror rrb rrd rri rrl rrr