-er -ol bbb bbd bbe bbf bbl bbn bbo bbr bdb bdd bde bdf bdl bdo bdr be- beb bed bee bef bel ben beo ber bfb bfd bfe bff bfl bfn bfo bfr blb bld ble blf bll bln blo blr bnb bnd bne bnf bnl bnn bno bnr bob bod boe bof bol bon boo bor brb brd bre brf brl brn bro brr dbb dbd dbe dbf dbl dbn dbo dbr ddb ddd dde ddf ddl ddn ddo ddr de- deb ded dee def del den deo der dfb dfd dfe dff dfl dfn dfo dfr dl- dlb dld dle dlf dll dlo dlr dnb dnd dne dnf dnl dnn dno dnr dob dod doe dof dol don doo dor drb drd dre drl drn dro drr ebb ebd ebe ebf ebl ebn ebo ebr ed- edb edd ede edf edl edn edo edr eeb eed eee eef eel een eeo eer ef- efb efd efe eff efl efo efr elb eld ele elf ell eln elo elr en- enb end ene enf enl enn eno enr eo- eob eod eoe eof eol eon eoo eor erb erd ere erf erl ern ero err fbb fbd fbe fbf fbl fbn fbo fbr fdb fdd fde fdf fdl fdn fdo fdr feb fed fee fef fel fen feo fer ffd ffe fff ffl ffn ffo ffr flb fld fle flf fll fln flo flr fnb fnd fne fnf fnl fnn fnr fob foe fof fol fon foo for frb frd fre frf frl frn fro frr lbb lbd lbe lbf lbl lbo lbr ldb ldd lde ldf ldl ldn ldo ldr leb led lee lef lel len leo ler lfb lfd lfe lff lfl lfn lfo lfr llb lld lle llf lll lln llo llr lnb lnd lne lnl lnn lno lnr lob lod loe lof lol lon loo lor lrb lrd lrf lrn lro lrr nbb nbd nbe nbf nbl nbn nbo nbr ndb ndd nde ndf ndl ndn ndo ndr ne- neb ned nee nef nel nen neo ner nfb nfd nfe nff nfl nfn nfo nfr nlb nld nle nlf nll nln nlo nlr nnb nne nnf nnl nnn nno no- nob nod noe nof nol non noo nor nrb nrd nre nrf nrl nrn nro nrr ob- obb obd obe obf obl obn obo obr odb odd ode odf odl odn odo odr oeb oed oee oef oel oen oeo oer of- ofb ofd ofe off ofl ofn ofo ofr olb old ole olf oll oln olo on- onb ond one onf onl onn ono onr oo- oob ood oof ool oon ooo oor or- orb ord ore orf orl orn oro orr rbb rbd rbe rbf rbl rbn rbo rbr rdb rdd rde rdf rdl rdn rdo rdr re- reb red ree ref rel ren reo rer rfb rfd rfe rff rfl rfn rfo rfr rld rle rlf rll rln rlo rlr rnb rnd rnn rno rnr rob rod roe rof rol ron roo ror rrb rrd rrf rrl rrn rrr