-er -ol bbb bbd bbe bbi bbl bbo bbr bbt bdb bdd bde bdi bdl bdo bdr bdt be- beb bed bee bei bel beo ber bet bi- bib bid bie bii bil bio bir bit blb bld ble bli bll blo blr blt bob bod boe boi bol boo bor bot brb brd bre bri brl bro brr brt btb btd bte bti btl bto btr btt dbb dbd dbe dbi dbl dbo dbr dbt ddb ddd dde ddi ddl ddo ddr ddt de- deb ded dee dei del deo der det di- dib did die dii dil dio dir dit dl- dlb dld dle dli dll dlo dlr dlt dob dod doe doi dol doo dor dot drb drd dre dri drl dro drr drt dtb dtd dte dti dtl dto dtr dtt ebb ebd ebe ebi ebl ebo ebr ebt ed- edb edd ede edi edl edo edr edt eeb eed eee eel eeo eer eet eib eid eie eii eil eio eir eit elb eld ele eli ell elo elr elt eo- eob eod eoe eoi eol eoo eor eot erb erd ere eri erl ero err ert etb etd ete eti etl eto etr ett i-d ibb ibd ibe ibi ibl ibo ibr ibt idb idd ide idi idl ido idr idt ie- ied iee iei iel ier iet iib iid iie iii iil iio iir iit il- ilb ild ile ili ill ilo ilr ilt io- iob iod ioe ioi iol ioo ior iot ir- irb ird ire iri irl iro irr irt itb itd ite iti itl ito itt lbb lbd lbe lbi lbl lbo lbr lbt ldb ldd lde ldi ldl ldo ldr ldt leb led lee lei lel leo ler let lib lid lie lii lil lio lir lit llb lld lle lli lll llo llr llt lob lod loe loi lol loo lor lot lrb lrd lri lro lrr lrt ltb ltd lte lti ltl lto ltr ltt o-i ob- obb obd obe obi obl obo obr obt odb odd ode odi odl odo odr odt oeb oed oee oei oel oeo oer oet oib oid oie oii oil oio oir oit olb old ole oli oll olo olt oo- oob ood ooi ool ooo oor oot or- orb ord ore ori orl oro orr ort ot- otb otd ote oti otl oto otr ott rbb rbd rbe rbi rbl rbo rbr rbt rdb rdd rde rdi rdl rdo rdr rdt re- reb red ree rei rel reo rer ret rib rid rie rii ril rio rir rit rld rle rli rll rlo rlr rlt rob rod roe roi rol roo ror rot rrb rrd rri rrl rrr rrt rtb rtd rte rti rtl rto rtr rtt tbb tbd tbe tbi tbl tbo tbr tbt tdb tdd tde tdi tdl tdo tdr tdt te- teb ted tee tei tel teo ter tet tib tid tie tii til tio tir tit tld tle tli tll tlo tlr tlt to- tob tod toe toi tol too tor tot trb trd tre tri trl tro trr trt ttb ttd tte tti ttl tto ttr ttt