-er -ol b-p bbb bbd bbe bbl bbm bbo bbp bbr bdb bdd bde bdl bdm bdo bdp bdr be- beb bed bee bel bem beo bep ber blb bld ble bll blm blo blp blr bmb bmd bme bml bmm bmo bmp bmr bob bod boe bol bom boo bop bor bpb bpd bpe bpl bpm bpo bpp bpr brb brd bre brl brm bro brp brr dbb dbd dbe dbl dbm dbo dbp dbr ddb ddd dde ddl ddm ddo ddp ddr de- deb ded dee del dem deo dep der dl- dlb dld dle dll dlm dlo dlp dlr dmb dmd dme dml dmm dmo dmp dmr dob dod doe dol dom doo dop dor dpb dpd dpe dpl dpm dpo dpp dpr drb drd dre drl drm dro drp drr ebb ebd ebe ebl ebm ebo ebp ebr ed- edb edd ede edl edm edo edp edr eeb eed eee eel eem eeo eep eer elb eld ele ell elm elo elp elr em- emb emd eme eml emm emo emp emr eo- eob eod eoe eol eom eoo eop eor ep- epb epd epe epl epm epo epp epr erb erd ere erl erm ero erp err l-p lbb lbd lbe lbl lbm lbo lbp lbr ldb ldd lde ldl ldm ldo ldp ldr leb led lee lel lem leo lep ler llb lld lle lll llm llo llp llr lmb lmd lme lml lmm lmo lmp lmr lob lod loe lol lom loo lop lor lpb lpd lpe lpl lpm lpo lpp lpr lrb lrd lrm lro lrp lrr m-o m-r mbb mbd mbe mbl mbm mbo mbp mbr mdb mdd mde mdl mdm mdo mdp mdr meb med mee mel mem meo mep mer mlb mld mle mll mlm mlo mlp mlr mmb mmd mme mml mmm mmo mmp mmr mob mod moe mol mom moo mop mor mpb mpd mpe mpl mpm mpo mpp mpr mrb mrd mre mrl mrm mro mrp mrr ob- obb obd obe obl obm obo obp obr odb odd ode odl odm odo odp odr oeb oed oee oel oem oeo oep oer olb old ole oll olm olo olp om- omb omd ome oml omm omo omp omr oo- oob ood ool oom ooo oop oor op- opb opd ope opl opm opo opp opr or- orb ord ore orl orm oro orp orr p-p pbb pbd pbe pbl pbm pbo pbp pbr pdb pdd pde pdl pdm pdo pdp pdr peb ped pee pel pem peo pep per plb pld ple pll plm plo plp plr pmb pmd pme pml pmm pmo pmp pmr pob pod poe pol pom poo pop por ppb ppd ppe ppl ppm ppo ppp ppr prb prd pre prl prm pro prp prr rbb rbd rbe rbl rbm rbo rbp rbr rdb rdd rde rdl rdm rdo rdp rdr re- reb red ree rel rem reo rep rer rld rle rll rlm rlo rlp rlr rmb rmd rme rml rmm rmo rmp rmr rob rod roe rol rom roo rop ror rpb rpd rpe rpl rpm rpo rpp rpr rrb rrd rrl rrm rrp rrr