-er -ol bbb bbd bbe bbf bbi bbl bbo bbr bbt bdb bdd bde bdf bdi bdl bdo bdr bdt be- beb bed bee bef bei bel beo ber bet bfb bfd bfe bff bfi bfl bfo bfr bft bi- bib bid bie bif bii bil bio bir bit blb bld ble blf bli bll blo blr blt bob bod boe bof boi bol boo bor bot brb brd bre brf bri brl bro brr brt btb btd bte btf bti btl bto btr btt dbb dbd dbe dbf dbi dbl dbo dbr dbt ddb ddd dde ddf ddi ddl ddo ddr ddt de- deb ded dee def dei del deo der det dfb dfd dfe dff dfi dfl dfo dfr dft di- dib did die dif dii dil dio dir dit dl- dlb dld dle dlf dli dll dlo dlr dlt dob dod doe dof doi dol doo dor dot drb drd dre dri drl dro drr drt dtb dtd dte dtf dti dtl dto dtr dtt ebb ebd ebe ebf ebi ebl ebo ebr ebt ed- edb edd ede edf edi edl edo edr edt eeb eed eee eef eel eeo eer eet ef- efb efd efe eff efi efl efo efr eft eib eid eie eif eii eil eio eir eit elb eld ele elf eli ell elo elr elt eo- eob eod eoe eof eoi eol eoo eor eot erb erd ere erf eri erl ero err ert etb etd ete etf eti etl eto etr ett fbb fbd fbe fbf fbi fbl fbo fbr fbt fdb fdd fde fdf fdi fdl fdo fdr fdt feb fed fee fef fei fel feo fer fet ffd ffe fff ffi ffl ffo ffr fft fib fid fie fif fii fil fir fit flb fld fle flf fli fll flo flr flt fob foe fof foi fol foo for fot frb frd fre frf fri frl fro frr frt ftb ftd fte ftf fti ftl fto ftr ftt i-d i-f ibb ibd ibe ibf ibi ibl ibo ibr ibt idb idd ide idf idi idl ido idr idt ie- ied iee ief iei iel ier iet ifb ifd ife iff ifi ifl ifo ifr ift iib iid iie iif iii iil iio iir iit il- ilb ild ile ilf ili ill ilo ilr ilt io- iob iod ioe iof ioi iol ioo ior iot ir- irb ird ire irf iri irl iro irr irt itb itd ite itf iti itl ito itt lbb lbd lbe lbf lbi lbl lbo lbr lbt ldb ldd lde ldf ldi ldl ldo ldr ldt leb led lee lef lei lel leo ler let lfb lfd lfe lff lfi lfl lfo lfr lft lib lid lie lif lii lil lio lir lit llb lld lle llf lli lll llo llr llt lob lod loe lof loi lol loo lor lot lrb lrd lrf lri lro lrr lrt ltb ltd lte ltf lti ltl lto ltr ltt o-i ob- obb obd obe obf obi obl obo obr obt odb odd ode odf odi odl odo odr odt oeb oed oee oef oei oel oeo oer oet of- ofb ofd ofe off ofi ofl ofo ofr oft oib oid oie oif oii oil oio oir oit olb old ole olf oli oll olo olt oo- oob ood oof ooi ool ooo oor oot or- orb ord ore orf ori orl oro orr ort ot- otb otd ote otf oti otl oto otr ott rbb rbd rbe rbf rbi rbl rbo rbr rbt rdb rdd rde rdf rdi rdl rdo rdr rdt re- reb red ree ref rei rel reo rer ret rfb rfd rfe rff rfi rfl rfo rfr rft rib rid rie rif rii ril rio rir rit rld rle rlf rli rll rlo rlr rlt rob rod roe rof roi rol roo ror rot rrb rrd rrf rri rrl rrr rrt rtb rtd rte rtf rti rtl rto rtr rtt tbb tbd tbe tbf tbi tbl tbo tbr tbt tdb tdd tde tdf tdi tdl tdo tdr tdt te- teb ted tee tef tei tel teo ter tet tfb tfd tfe tff tfi tfl tfo tfr tft tib tid tie tif tii til tio tir tit tld tle tlf tli tll tlo tlr tlt to- tob tod toe tof toi tol too tor tot trb trd tre trf tri trl tro trr trt ttb ttd tte ttf tti ttl tto ttr ttt