-er b-p bbb bbe bbo bbp bbr bbs bbt be- beb bee beo bep ber bes bet bev bob boe boo bop bor bos bot bov bpb bpe bpo bpp bpr bps bpt bpv brb bre bro brp brr brs brt brv bsb bse bso bsp bsr bss bst bsv btb bte bto btp btr bts btt btv bvb bve bvo bvp bvr bvs bvt bvv ebb ebe ebo ebp ebr ebs ebt ebv eeb eee eeo eep eer ees eet eev eo- eob eoe eoo eop eor eos eot ep- epb epe epo epp epr eps ept erb ere ero erp err ers ert erv es- esb ese eso esp esr ess est esv etb ete eto etp etr ets ett etv evb eve evo evp evr evs evt evv ob- obb obe obo obp obr obs obt obv oeb oee oeo oep oer oes oet oo- oob ooo oop oor oos oot oov op- opb ope opo opp opr ops opt opv or- orb ore oro orp orr ors ort orv os- osb ose oso osp osr oss ost osv ot- otb ote oto otp otr ots ott otv ov- ovb ove ovo ovp ovs ovv p-p pbb pbe pbo pbp pbr pbs pbt peb pee peo pep per pes pet pev pob poe poo pop por pos pot pov ppb ppe ppo ppp ppr pps ppt ppv prb pre pro prp prr prs prt prv ps- psb pse pso psp psr pss pst psv pt- ptb pte pto ptp ptr pts ptt ptv pvb pve pvo pvp pvr pvs pvt pvv rbb rbe rbo rbp rbr rbs rbt re- reb ree reo rep rer res ret rev rob roe roo rop ror ros rot rov rpb rpe rpo rpp rpr rps rpt rpv rrb rrp rrr rrs rrt rsb rse rso rsp rsr rss rst rsv rtb rte rto rtp rtr rts rtt rtv rvb rve rvo rvp rvr rvs rvt rvv sbb sbe sbo sbp sbr sbs sbt sbv se- seb see seo sep ser ses set sev sob soe soo sop sor sos sot sov spb spe spo spp spr sps spt spv sr- srb sre sro srp srr srs srt srv ss- ssb sse sso ssp ssr sss sst ssv stb ste sto stp str sts stt stv svb sve svo svp svr svs svt svv tbb tbe tbo tbp tbr tbs tbt tbv te- teb tee teo tep ter tes tet tev to- tob toe too top tor tos tot tov tpb tpe tpo tpp tpr tps tpt tpv trb tre tro trp trr trs trt trv tsb tse tso tsp tsr tss tst tsv ttb tte tto ttp ttr tts ttt ttv tvb tve tvo tvp tvr tvs tvt v-e vbo vbr vbs vbv veb vee veo vep ver ves vet vob voe voo vop vor vos vot vov vpb vpe vpo vpp vpr vps vpt vrb vre vrp vrr vrs vrt vsb vse 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 beep beer bees beet beo- beor beos beot bepo bere bero berr bers bert bes- bese beso bess best bete beto bets bett betv bevo bevs bobb bobe bobo bobs boee boeo boep boer boes boet boob booe boop boor boos boot bope bopp bops bor- bore boro borr bors bort bose boso boss bost botb bote boto bots bott bove bovo bpoe bpot breb bree breo brep brer bres bret brev brob broe broo bror bros brot brrr brrs brsb brsr brst bseb bsee bser bses bset 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 eeps eero eers eese eete eets eoes eore eost eoto eots epee eper epes epor epos epot eppo eppp epps eprb epro eprp eprs epsp epss epte eptv erbb erbe ereb erer eres eret erev erob eroe eroo eros erpe erps erre erro errs erse erso erst erts erve esbo esbs esee eseo eser eses eset eso- esop esos espe espo espp esps esse esso essp esst este esto estp estr ests estv etbr etee eter etes etoe etos etre etro ette etto etvo ever eves evet evoe evoo evop evos evre evrs evst o-eo obbo ober obes obet oboe obor obos obot obre obro obsr obss obst obts obvs oeps oere oers oese oest oevp oobe ooer ooes oooo ooos oops oore oort oose oost ootb ootp oots opep oper opes opet opo- opor opos oppo opps opto opts orbb orbe orbo orbs ore- oreb oreo orer ores oro- oroe oror oros orot orpe orps orro orrs orse orso orte orto orts orve orvr orvs osbe osbp osee oser oses oset osoo osor osos osov osro ossb osse osso oste ostr osts osve otbs otee otep oter otes oto- otoe otoo otor otos otov otpp otre otro otrs otse otso otte otto otts ovee over ovet ovo- ovoo ovot ovpp ovre pbrs pbsp peep peer pees peet peev peor pepe pepo peps per- pere pero perp perr pers pert perv pese peso pess pest pete peto petr pets pett pobo pobs poer poes poet poop poor poos poot pop- pope popo popp pops popt porb pore poro porr pors port posb pose poso poss post pote poto pots pott povo povs ppbv pper ppos pppo pppp ppps ppss ppts pptt pptv prbs pre- preb pree prep pres pret prev pro- prob proe proo prop pros prot prov prps prrs prse prso prss prsv prtp prtr psbr psbt pseb psos psov pspp pspr psps psrp psse psso psst psts pstv psvt pter ptop pvts rbbb rbbr rbbs rbsp rbss rbst rebb rebe rebo rebs reeb reep rees reet reev reop reos reot repe repo repp repr reps rept rere rero rers rert rese reso resp ress rest rete reto retr rets rett reve revo revp