-er b-p bbb bbe bbf bbm bbo bbp bbr bbs bbt be- beb bee bef bem beo bep ber bes bet bfb bfe bff bfm bfo bfp bfr bfs bft bmb bme bmf bmm bmo bmp bmr bms bmt bob boe bof bom boo bop bor bos bot bpb bpe bpf bpm bpo bpp bpr bps bpt brb bre brf brm bro brp brr brs brt bsb bse bsf bsm bso bsp bsr bss bst btb bte btf btm bto btp btr bts btt ebb ebe ebf ebm ebo ebp ebr ebs ebt eeb eee eef eem eeo eep eer ees eet ef- efb efe eff efm efo efp efr efs eft em- emb eme emf emm emo emp emr ems emt eo- eob eoe eof eom eoo eop eor eos eot ep- epb epe epf epm epo epp epr eps ept erb ere erf erm ero erp err ers ert es- esb ese esf esm eso esp esr ess est etb ete etf etm eto etp etr ets ett fbb fbe fbf fbm fbo fbp fbr fbs fbt feb fee fef fem feo fep fer fes fet ffe fff ffm ffo ffp ffr ffs fft fmb fme fmf fmm fmo fmp fmr fms fmt fob foe fof fom foo fop for fos fot fpb fpe fpm fpo fpp fpr fps fpt frb fre frf frm fro frp frr frs frt fsb fse fsf fsm fso fsp fsr fss fst ftb fte ftf ftm fto ftp ftr fts ftt m-f m-o m-r mbb mbe mbf mbm mbo mbp mbr mbs mbt meb mee mef mem meo mep mer mes met mfb mfe mff mfm mfo mfp mfr mfs mft mmb mme mmf mmm mmo mmp mmr mms mmt mob moe mof mom moo mop mor mos mot mpb mpe mpf mpm mpo mpp mpr mps mpt mrb mre mrf mrm mro mrp mrr mrs mrt msb mse msf msm mso msp msr mss mst mtb mte mtf mtm mto mtp mtr mts mtt ob- obb obe obf obm obo obp obr obs obt oeb oee oef oem oeo oep oer oes oet of- ofb ofe off ofm ofo ofp ofr ofs oft om- omb ome omf omm omo omp omr oms omt oo- oob oof oom ooo oop oor oos oot op- opb ope opf opm opo opp opr ops opt or- orb ore orf orm oro orp orr ors ort os- osb ose osf osm oso osp osr oss ost ot- otb ote otf otm oto otp otr ots ott p-p pbb pbe pbf pbm pbo pbp pbr pbs pbt peb pee pef pem peo pep per pes pet pfb pfe pff pfm pfo pfp pfr pfs pft pmb pme pmf pmm pmo pmp pmr pms pmt pob poe pof pom poo pop por pos pot ppb ppe ppf ppm ppo ppp ppr pps ppt prb pre prf prm pro prp prr prs prt ps- psb pse psf psm pso psp psr pss pst pt- ptb pte ptf ptm pto ptp ptr pts ptt rbb rbe rbf rbm rbo rbp rbr rbs rbt re- reb ree ref rem reo rep rer res ret rfb rfe rff rfm rfo rfp rfr rfs rft rmb rme rmf rmm rmo rmp rmr rms rmt rob roe rof rom roo rop ror ros rot rpb rpe rpf rpm rpo rpp rpr rps rpt rrb rrf rrm rrp rrr rrs rrt rsb rse rsf rsm rso rsp rsr rss rst rtb rte rtf rtm rto rtp rtr rts rtt sbb sbe sbf sbm sbo sbp sbr sbs sbt se- seb see sef sem seo sep ser ses set sfb sfe sff sfm sfo sfp sfr sfs sft smb sme smf smm smo smp smr sms smt sob soe sof som soo sop sor sos sot spb spe spf spm spo spp spr sps spt sr- srb sre srf srm sro srp srr srs srt ss- ssb sse ssf ssm sso ssp ssr sss sst stb ste stf stm sto stp str sts stt tbb tbe tbf tbm tbo tbp tbr tbs tbt te- teb tee tef tem teo tep ter tes tet tfb tfe tff tfm tfo tfp tfr tfs tft tmb tme tmf tmm tmo tmp tmr tms tmt to- tob toe tof tom too top tor tos tot tpb tpe tpf tpm tpo tpp tpr tps tpt trb tre trf trm tro trp trr trs trt tsb tse tsf tsm tso tsp tsr tss tst ttb tte ttf ttm tto ttp ttr tts ttt

-ose bbbb bbbs bbeb bbet bbpr bebb bebe bebo beeb beef beem beep beer bees beet befe beff befo beft beme beo- beof beor beos beot bepo bere berm bero berr bers bert bes- bese besm beso bess best bete beto bets bett bffs bfme bfpo bfpp bfsr bfts bftt bmep bmop bmpt bmts bobb bobe bobo bobs boee boef boeo boep boer boes boet bofe boff bofs bomb bome bomp boms bomt boob booe boof boom boop boor boos boot bope bopp bops bor- bore borf borm boro borr bors bort bose bosm boso boss bost botb bote boto bots bott bpms bpoe bpot bptf breb bree bref brem breo brep brer bres bret brfm brob broe brom broo bror bros brot brrm brrr brrs brsb brsr brst bseb bsee bser bses bset bsff bsfs bsms bsmt bsos bspp bspr bsrm bsse bssm bsts btbp btob btor btps btrt btss bttb ebbo ebbr ebbs eber ebes eboe eboo ebor ebos ebpo ebro eeee eees eefe eemo eems eeps eero eers eese eete eets efbr efeo efes efet effs efor efsm eft- eftp efts embe embo embr embs emer emes emet emme emms emor emos empe emps empt emre emrs emse emso emst emte emtp emts eoes eore eost eoto eots epbm epee eper epes epmo epms epor epos epot eppo eppp epps eprb epro eprp eprs epsf epsp epss epte erbb erbe ereb erem erer eres eret erfs erft erme ermo erms erob eroe eroo eros erpe