-er b-p bbb bbc bbe bbo bbp bbr bbs bbt bcb bcc bce bco bcp bcr bcs bct be- beb bec bee beo bep ber bes bet bob boc boe boo bop bor bos bot bpb bpc bpe bpo bpp bpr bps bpt brb bre bro brp brr brs brt bsb bsc bse bso bsp bsr bss bst btb btc bte bto btp btr bts btt c-- cbb cbc cbe cbo cbp cbr cbs cbt ccb ccc cce cco ccp ccr ccs cct ce- ceb cec cee ceo cep cer ces cet co- cob coc coe coo cop cor cos cot cpb cpc cpe cpo cpp cpr cps cpt crb crc cre cro crp crr crs crt csb csc cse cso csp csr css cst ctb ctc cte cto ctp ctr cts ctt ebb ebc ebe ebo ebp ebr ebs ebt ec- ecb ecc ece eco ecr ecs ect eeb eec eee eeo eep eer ees eet eo- eob eoc eoe eoo eop eor eos eot ep- epb epc epe epo epp epr eps ept erb erc ere ero erp err ers ert es- esb esc ese eso esp esr ess est etb etc ete eto etp etr ets ett ob- obb obc obe obo obp obr obs obt oc- ocb occ oco ocp ocr ocs oct oeb oec oee oeo oep oer oes oet oo- oob ooc ooo oop oor oos oot op- opb opc ope opo opp opr ops opt or- orb orc ore oro orp orr ors ort os- osb osc ose oso osp osr oss ost ot- otb otc ote oto otp otr ots ott p-p pbb pbc pbe pbo pbp pbr pbs pbt pcb pcc pce pco pcp pcr pcs pct peb pec pee peo pep per pes pet pob poc poe poo pop por pos pot ppb ppc ppe ppo ppp ppr pps ppt prb prc pre pro prp prr prs prt ps- psb psc pse pso psp psr pss pst pt- ptb ptc pte pto ptp ptr pts ptt rbb rbc rbe rbo rbp rbr rbs rbt rcb rcc rce rco rcp rcr rcs rct re- reb rec ree reo rep rer res ret rob roc roe roo rop ror ros rot rpb rpc rpe rpo rpp rpr rps rpt rrb rrc rrp rrr rrs rrt rsb rsc rse rso rsp rsr rss rst rtb rtc rte rto rtp rtr rts rtt sbb sbc sbe sbo sbp sbr sbs sbt scb scc sce sco scp scr scs sct se- seb sec see seo sep ser ses set sob soc soe soo sop sor sos sot spb spc spe spo spp spr sps spt sr- srb src sre sro srp srr srs srt ss- ssb ssc sse sso ssp ssr sss sst stb stc ste sto stp str sts stt tbb tbc tbe tbo tbp tbr tbs tbt tcb tcc tce tco tcp tcr tcs tct te- teb tec tee teo tep ter tes tet to- tob toc toe too top tor tos tot tpb tpc tpe tpo tpp tpr tps tpt trb trc tre tro trp trr trs trt tsb tsc tse tso tsp tsr tss tst ttb ttc tte tto ttp ttr tts ttt

-ose bbbb bbbs bbeb bbet bbpr bbrc bcbc bcbp bcbs bccc bccs bcec bcer bces bcet bcor bcos bcpp bcps bcrs bcsc bcss bctc bcts bebb bebe bebo becs beeb beep beer bees beet beo- beor beos beot bepo berc bere bero berr bers bert bes- bese beso bess best betc bete beto bets bett bobb bobe bobo bobs boce boco bocs boec boee boeo boep boer boes boet boob booc booe boop boor boos boot bope bopp bops bor- bore boro borr bors bort bosc bose boso boss bost botb bote boto bots bott bpcp bpoe bpot bprc brcb brce breb brec bree breo brep brer bres bret brob broc broe broo bror bros brot brrr brrs brsb brsr brst brtc bscp bscs bseb bsec bsee bser bses bset bsos bspp bspr bssc bsse bsts btbp btcc btcs btec btob btor btps btrc btrt btss bttb c-bo cbbc cbbs cbcc cbce cbcp cbcr cbcs cbct cbec cbee cber cbet cbot cbpc cbpp cbre cbrt cbsc cbse cbtc ccbc cccb cccc cccp cccs ccee ccob ccoc ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccrt ccsp ccss ccst cctb cctc cctt cebp cebs cec- cece ceco cecp cecs cect ceeb ceec cees ceop ceor ceos cepc cepe cepo cepp cepr ceps cept cer- cerc cere cero cerp cers cert cesc cese cesp cesr cess cest cet- cete ceto cetp cets cobb cobe cobo cobs coce coco cocp coct coep coes coob coop coos coot cope copo copp copr cops copt cor- corb corc core coro corp corr cors cort cosc cose coso cosp coss cost cotb cotc cote coto cots cott cpbc cpce cpcs cpeb cpep cper cpos cpps cpre cprs cprt cpsc cpso cpsr cptp cptr cpts crbc crcc crce crcr cre- creb crec cree creo crep cres cret crob croc croe croo crop cror crot crpc crps crrt crsp crss crst crtc crtp crts cscb cscc csce csco cscr cscs csec csee csep cser cset csob csor csos csot cspb cspc cspe csps cspt csrc csrs csse cssr cstc csto cstr csts ctbs ctcp ctec ctep ctor ctos ctot ctpo ctpp ctps ctrc ctrp ctrs ctsc ctss ctts ebbc ebbo ebbr ebbs ebcc eber ebes eboe eboo ebor ebos ebpo ebro ecbc ecbe eccb eccc ecce ecco ecct eces eco- ecop ecos ecot ecpp ecrc ecrr ecsc ecse ecsp ecss ect- ectc ecto ects eecs eeee eees eeoc eeps eerc eero eers eese eetc eete eets eoes eore eost eotc eoto eots epcc epec epee eper epes epoc epor epos epot eppc eppo eppp epps eprb epro eprp eprs epsc epsp epss epte erbb erbe ercc erce ercp ereb erec erer eres eret erob eroc eroe eroo eros erpe erps errc erre erro errs erse erso erst erts esbo esbs escb esce esco escr escs esee