-er -ol b-p bbb bbd bbe bbf bbi bbl bbo bbp bbr bbt bdb bdd bde bdf bdi bdl bdo bdp bdr bdt be- beb bed bee bef bei bel beo bep ber bet bfb bfd bfe bff bfi bfl bfo bfp bfr bft bi- bib bid bie bif bii bil bio bip bir bit blb bld ble blf bli bll blo blp blr blt bob bod boe bof boi bol boo bop bor bot bpb bpd bpe bpf bpi bpl bpo bpp bpr bpt brb brd bre brf bri brl bro brp brr brt btb btd bte btf bti btl bto btp btr btt dbb dbd dbe dbf dbi dbl dbo dbp dbr dbt ddb ddd dde ddf ddi ddl ddo ddp ddr ddt de- deb ded dee def dei del deo dep der det dfb dfd dfe dff dfi dfl dfo dfp dfr dft di- dib did die dif dii dil dio dip dir dit dl- dlb dld dle dlf dli dll dlo dlp dlr dlt dob dod doe dof doi dol doo dop dor dot dpb dpd dpe dpf dpi dpl dpo dpp dpr dpt drb drd dre dri drl dro drp drr drt dtb dtd dte dtf dti dtl dto dtp dtr dtt ebb ebd ebe ebf ebi ebl ebo ebp ebr ebt ed- edb edd ede edf edi edl edo edp edr edt eeb eed eee eef eel eeo eep eer eet ef- efb efd efe eff efi efl efo efp efr eft eib eid eie eif eii eil eio eip eir eit elb eld ele elf eli ell elo elp elr elt eo- eob eod eoe eof eoi eol eoo eop eor eot ep- epb epd epe epf epi epl epo epp epr ept erb erd ere erf eri erl ero erp err ert etb etd ete etf eti etl eto etp etr ett fbb fbd fbe fbf fbi fbl fbo fbp fbr fbt fdb fdd fde fdf fdi fdl fdo fdp fdr fdt feb fed fee fef fei fel feo fep fer fet ffd ffe fff ffi ffl ffo ffp ffr fft fib fid fie fif fii fil fip fir fit flb fld fle flf fli fll flo flp flr flt fob foe fof foi fol foo fop for fot fpb fpd fpe fpi fpl fpo fpp fpr fpt frb frd fre frf fri frl fro frp frr frt ftb ftd fte ftf fti ftl fto ftp ftr ftt i-d i-f ibb ibd ibe ibf ibi ibl ibo ibp ibr ibt idb idd ide idf idi idl ido idp idr idt ie- ied iee ief iei iel iep ier iet ifb ifd ife iff ifi ifl ifo ifp ifr ift iib iid iie iif iii iil iio iip iir iit il- ilb ild ile ilf ili ill ilo ilp ilr ilt io- iob iod ioe iof ioi iol ioo iop ior iot ipb ipd ipe ipf ipi ipl ipo ipp ipr ipt ir- irb ird ire irf iri irl iro irp irr irt itb itd ite itf iti itl ito itp itt l-p lbb lbd lbe lbf lbi lbl lbo lbp lbr lbt ldb ldd lde ldf ldi ldl ldo ldp ldr ldt leb led lee lef lei lel leo lep ler let lfb lfd lfe lff lfi lfl lfo lfp lfr lft lib lid lie lif lii lil lio lip lir lit llb lld lle llf lli lll llo llp llr llt lob lod loe lof loi lol loo lop lor lot lpb lpd lpe lpf lpi lpl lpo lpp lpr lpt lrb lrd lrf lri lro lrp lrr lrt ltb ltd lte ltf lti ltl lto ltp ltr ltt o-i ob- obb obd obe obf obi obl obo obp obr obt odb odd ode odf odi odl odo odp odr odt oeb oed oee oef oei oel oeo oep oer oet of- ofb ofd ofe off ofi ofl ofo ofp ofr oft oib oid oie oif oii oil oio oip oir oit olb old ole olf oli oll olo olp olt oo- oob ood oof ooi ool ooo oop oor oot op- opb opd ope opf opi opl opo opp opr opt or- orb ord ore orf ori orl oro orp orr ort ot- otb otd ote otf oti otl oto otp otr ott p-p pbb pbd pbe pbf pbi pbl pbo pbp pbr pbt pdb pdd pde pdf pdi pdl pdo pdp pdr pdt peb ped pee pef pei pel peo pep per pet pfb pfd pfe pff pfi pfl pfo pfp pfr pft pib pid pie pif pii pil pio pip pir pit plb pld ple plf pli pll plo plp plr plt pob pod poe pof poi pol poo pop por pot ppb ppd ppe ppf ppi ppl ppo ppp ppr ppt prb prd pre prf pri prl pro prp prr prt pt- ptb ptd pte ptf pti ptl pto ptp ptr ptt rbb rbd rbe rbf rbi rbl rbo rbp rbr rbt rdb rdd rde rdf rdi rdl rdo rdp rdr rdt re- reb red ree ref rei rel reo rep rer ret rfb rfd rfe rff rfi rfl rfo rfp rfr rft rib rid rie rif rii ril rio rip rir rit rld rle rlf rli rll rlo rlp rlr rlt rob rod roe rof roi rol roo rop ror rot rpb rpd rpe rpf rpi rpl rpo rpp rpr rpt rrb rrd rrf rri rrl rrp rrr rrt rtb rtd rte rtf rti rtl rto rtp rtr rtt tbb tbd tbe tbf tbi tbl tbo tbp tbr tbt tdb tdd tde tdf tdi tdl tdo tdp tdr tdt te- teb ted tee tef tei tel teo tep ter tet tfb tfd tfe tff tfi tfl tfo tfp tfr tft tib tid tie tif tii til tio tip tir tit tld tle tlf tli tll tlo tlp tlr tlt to- tob tod toe tof toi tol too top tor tot tpb tpd tpe tpf tpi tpl tpo tpp tpr tpt trb trd tre trf tri trl