-er b-p bbb bbe bbf bbo bbp bbr bbs bbt be- beb bee bef beo bep ber bes bet bev bfb bfe bff bfo bfp bfr bfs bft bfv bob boe bof boo bop bor bos bot bov bpb bpe bpf bpo bpp bpr bps bpt bpv brb bre brf bro brp brr brs brt brv bsb bse bsf bso bsp bsr bss bst bsv btb bte btf bto btp btr bts btt btv bvb bve bvo bvp bvr bvs bvt bvv ebb ebe ebf ebo ebp ebr ebs ebt ebv eeb eee eef eeo eep eer ees eet eev ef- efb efe eff efo efp efr efs eft eo- eob eoe eof eoo eop eor eos eot ep- epb epe epf epo epp epr eps ept erb ere erf ero erp err ers ert erv es- esb ese esf eso esp esr ess est esv etb ete etf eto etp etr ets ett etv evb eve evf evo evp evr evs evt evv fbb fbe fbf fbo fbp fbr fbs fbt feb fee fef feo fep fer fes fet fev ffe fff ffo ffp ffr ffs fft ffv fob foe fof foo fop for fos fot fpb fpe fpo fpp fpr fps fpt fpv frb fre frf fro frp frr frs frt fsb fse fsf fso fsp fsr fss fst fsv ftb fte ftf fto ftp ftr fts ftt ftv fvp fvt ob- obb obe obf obo obp obr obs obt obv oeb oee oef oeo oep oer oes oet of- ofb ofe off ofo ofp ofr ofs oft ofv oo- oob oof ooo oop oor oos oot oov op- opb ope opf opo opp opr ops opt opv or- orb ore orf oro orp orr ors ort orv os- osb ose osf oso osp osr oss ost osv ot- otb ote otf oto otp otr ots ott otv ov- ovb ove ovf ovo ovp ovs ovv p-p pbb pbe pbf pbo pbp pbr pbs pbt peb pee pef peo pep per pes pet pev pfb pfe pff pfo pfp pfr pfs pft pfv pob poe pof poo pop por pos pot pov ppb ppe ppf ppo ppp ppr pps ppt ppv prb pre prf pro prp prr prs prt prv ps- psb pse psf pso psp psr pss pst psv pt- ptb pte ptf pto ptp ptr pts ptt ptv pvb pve pvf pvo pvp pvr pvs pvt pvv rbb rbe rbf rbo rbp rbr rbs rbt re- reb ree ref reo rep rer res ret rev rfb rfe rff rfo rfp rfr rfs rft rfv rob roe rof roo rop ror ros rot rov rpb rpe rpf rpo rpp rpr rps rpt rpv rrb rrf rrp rrr rrs rrt rsb rse rsf rso rsp rsr rss rst rsv rtb rte rtf rto rtp rtr rts rtt rtv rvb rve rvf rvo rvp rvr rvs rvt rvv sbb sbe sbf sbo sbp sbr sbs sbt sbv se- seb see sef seo sep ser ses set sev sfb sfe sff sfo sfp sfr sfs sft sfv sob soe sof soo sop sor sos sot sov spb spe spf spo spp spr sps spt spv sr- srb sre srf sro srp srr srs srt srv ss- ssb sse ssf sso ssp ssr sss sst ssv stb ste stf sto stp str sts stt stv svb sve svf svo svp svr svs svt svv tbb tbe tbf tbo tbp tbr tbs tbt tbv te- teb tee tef teo tep ter tes tet tev tfb tfe tff tfo tfp tfr tfs tft to- tob toe tof too top tor tos tot tov tpb tpe tpf tpo tpp tpr tps tpt tpv trb tre trf tro trp trr trs trt trv tsb tse tsf tso tsp tsr tss tst tsv ttb tte ttf tto ttp ttr tts ttt ttv tvb tve tvf tvo tvp tvr tvs tvt v-e vbo vbr vbs vbv veb vee vef veo vep ver ves vet vfb vff vfp vfr vfs vft vfv vob voe vof voo vop vor vos vot vov vpb vpe vpf vpo vpp vpr vps vpt vrb vre vrf vrp vrr vrs vrt vsb vse vsf vso vsp vsr vss vst vsv vtb vte vto vtr vts vtt vtv vvb vvo vvr vvs vvt vvv

-ose bbbb bbbs bbeb bbet bbpr bebb bebe bebo beeb beef beep beer bees beet befe beff befo beft beo- beof beor beos beot bepo bere bero berr bers bert bes- bese beso bess best bete beto bets bett betv bevo bevs bffs bfpo bfpp bfsr bfts bftt bobb bobe bobo bobs boee boef boeo boep boer boes boet bofe boff bofs boob booe boof boop boor boos boot bope bopp bops bor- bore borf boro borr bors bort bose boso boss bost botb bote boto bots bott bove bovo bpoe bpot bptf breb bree bref breo brep brer bres bret brev brob broe broo bror bros brot brrr brrs brsb brsr brst bseb bsee bser bses bset bsff bsfs bsos bspp bspr bsse bsts bstv btbp btob btor btps btrt btss bttb ebbo ebbr ebbs eber ebes eboe eboo ebor ebos ebpo ebro eeee eees eefe eeps eero eers eese eete eets efbr efeo efes efet effs efor eft- eftp efts eoes eore eost eoto eots epee eper epes epor epos epot eppo eppp epps eprb epro eprp eprs epsf epsp epss epte eptv erbb erbe ereb erer eres eret erev erfs erft erob eroe eroo eros erpe erps erre erro errs erse erso erst erts erve esbo esbs esee eseo eser eses eset esfp esfs eso- esop esos espe espo espp esps esse esso essp esst este esto estp estr ests estv etbr etee eter etes etfb etfe etoe etos etre etro ette etto etvo ever eves evet evoe evoo evop evos evre evrs evst fbop fbrs febo febs feeb feer fees feet fefe feff fefo feof feps ferb fere fero ferr fers fert ferv fese fess fest fete fetp fetr fets fett fetv feve fevr ffee ffff