-er -ol b-p bbb bbe bbl bbm bbo bbp bbr bbt be- beb bee bel bem beo bep ber bet blb ble bll blm blo blp blr blt bmb bme bml bmm bmo bmp bmr bmt bob boe bol bom boo bop bor bot bpb bpe bpl bpm bpo bpp bpr bpt brb bre brl brm bro brp brr brt btb bte btl btm bto btp btr btt ebb ebe ebl ebm ebo ebp ebr ebt eeb eee eel eem eeo eep eer eet elb ele ell elm elo elp elr elt em- emb eme eml emm emo emp emr emt eo- eob eoe eol eom eoo eop eor eot ep- epb epe epl epm epo epp epr ept erb ere erl erm ero erp err ert etb ete etl etm eto etp etr ett l-p lbb lbe lbl lbm lbo lbp lbr lbt leb lee lel lem leo lep ler let llb lle lll llm llo llp llr llt lmb lme lml lmm lmo lmp lmr lmt lob loe lol lom loo lop lor lot lpb lpe lpl lpm lpo lpp lpr lpt lrb lrm lro lrp lrr lrt ltb lte ltl ltm lto ltp ltr ltt m-o m-r mbb mbe mbl mbm mbo mbp mbr mbt meb mee mel mem meo mep mer met mlb mle mll mlm mlo mlp mlr mlt mmb mme mml mmm mmo mmp mmr mmt mob moe mol mom moo mop mor mot mpb mpe mpl mpm mpo mpp mpr mpt mrb mre mrl mrm mro mrp mrr mrt mtb mte mtl mtm mto mtp mtr mtt ob- obb obe obl obm obo obp obr obt oeb oee oel oem oeo oep oer oet olb ole oll olm olo olp olt om- omb ome oml omm omo omp omr omt oo- oob ool oom ooo oop oor oot op- opb ope opl opm opo opp opr opt or- orb ore orl orm oro orp orr ort ot- otb ote otl otm oto otp otr ott p-p pbb pbe pbl pbm pbo pbp pbr pbt peb pee pel pem peo pep per pet plb ple pll plm plo plp plr plt pmb pme pml pmm pmo pmp pmr pmt pob poe pol pom poo pop por pot ppb ppe ppl ppm ppo ppp ppr ppt prb pre prl prm pro prp prr prt pt- ptb pte ptl ptm pto ptp ptr ptt rbb rbe rbl rbm rbo rbp rbr rbt re- reb ree rel rem reo rep rer ret rle rll rlm rlo rlp rlr rlt rmb rme rml rmm rmo rmp rmr rmt rob roe rol rom roo rop ror rot rpb rpe rpl rpm rpo rpp rpr rpt rrb rrl rrm rrp rrr rrt rtb rte rtl rtm rto rtp rtr rtt tbb tbe tbl tbm tbo tbp tbr tbt te- teb tee tel tem teo tep ter tet tle tll tlm tlo tlp tlr tlt tmb tme tml tmm tmo tmp tmr tmt to- tob toe tol tom too top tor tot tpb tpe tpl tpm tpo tpp tpr tpt trb tre trl trm tro trp trr trt ttb tte ttl ttm tto ttp ttr ttt