-er b-p bbb bbc bbe bbo bbp bbr bbs bcb bcc bce bco bcp bcr bcs be- beb bec bee beo bep ber bes bob boc boe boo bop bor bos bpb bpc bpe bpo bpp bpr bps brb bre bro brp brr brs bsb bsc bse bso bsp bsr bss c-- cbb cbc cbe cbo cbp cbr cbs ccb ccc cce cco ccp ccr ccs ce- ceb cec cee ceo cep cer ces co- cob coc coe coo cop cor cos cpb cpc cpe cpo cpp cpr cps crb crc cre cro crp crr crs csb csc cse cso csp csr css ebb ebc ebe ebo ebp ebr ebs ec- ecb ecc ece eco ecr ecs eeb eec eee eeo eep eer ees eo- eob eoc eoe eoo eop eor eos ep- epb epc epe epo epp epr eps erb erc ere ero erp err ers es- esb esc ese eso esp esr ess ob- obb obc obe obo obp obr obs oc- ocb occ oco ocp ocr ocs oeb oec oee oeo oep oer oes oo- oob ooc ooo oop oor oos op- opb opc ope opo opp opr ops or- orb orc ore oro orp orr ors os- osb osc ose oso osp osr oss p-p pbb pbc pbe pbo pbp pbr pbs pcb pcc pce pco pcp pcr pcs peb pec pee peo pep per pes pob poc poe poo pop por pos ppb ppc ppe ppo ppp ppr pps prb prc pre pro prp prr prs ps- psb psc pse pso psp psr pss rbb rbc rbe rbo rbp rbr rbs rcb rcc rce rco rcp rcr rcs re- reb rec ree reo rep rer res rob roc roe roo rop ror ros rpb rpc rpe rpo rpp rpr rps rrb rrc rrp rrr rrs rsb rsc rse rso rsp rsr rss sbb sbc sbe sbo sbp sbr sbs scb scc sce sco scp scr scs se- seb sec see seo sep ser ses sob soc soe soo sop sor sos spb spc spe spo spp spr sps sr- srb src sre sro srp srr srs ss- ssb ssc sse sso ssp ssr sss

-ose bbbb bbbs bbeb bbpr bbrc bcbc bcbp bcbs bccc bccs bcec bcer bces bcor bcos bcpp bcps bcrs bcsc bcss bebb bebe bebo becs beeb beep beer bees beo- beor beos bepo berc bere bero berr bers bes- bese beso bess bobb bobe bobo bobs boce boco bocs boec boee boeo boep boer boes boob booc booe boop boor boos bope bopp bops bor- bore boro borr bors bosc bose boso boss bpcp bpoe bprc brcb brce breb brec bree breo brep brer bres brob broc broe broo bror bros brrr brrs brsb brsr bscp bscs bseb bsec bsee bser bses bsos bspp bspr bssc bsse c-bo cbbc cbbs cbcc cbce cbcp cbcr cbcs cbec cbee cber cbpc cbpp cbre cbsc cbse ccbc cccb cccc cccp cccs ccee ccob ccoc ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccsp ccss cebp cebs cec- cece ceco cecp cecs ceeb ceec cees ceop ceor ceos cepc cepe cepo cepp cepr ceps cer- cerc cere cero cerp cers cesc cese cesp cesr cess cobb cobe cobo cobs coce coco cocp coep coes coob coop coos cope copo copp copr cops cor- corb corc core coro corp corr cors cosc cose coso cosp coss cpbc cpce cpcs cpeb cpep cper cpos cpps cpre cprs cpsc cpso cpsr crbc crcc crce crcr cre- creb crec cree creo crep cres crob croc croe croo crop cror crpc crps crsp crss cscb cscc csce csco cscr cscs csec csee csep cser csob csor csos cspb cspc cspe csps csrc csrs csse cssr ebbc ebbo ebbr ebbs ebcc eber ebes eboe eboo ebor ebos ebpo ebro ecbc ecbe eccb eccc ecce ecco eces eco- ecop ecos ecpp ecrc ecrr ecsc ecse ecsp ecss eecs eeee eees eeoc eeps eerc eero eers eese eoes eore epcc epec epee eper epes epoc epor epos eppc eppo eppp epps eprb epro eprp eprs epsc epsp epss erbb erbe ercc erce ercp ereb erec erer eres erob eroc eroe eroo eros erpe erps errc erre erro errs erse erso esbo esbs escb esce esco escr escs esee eseo eser eses eso- esop esos espc espe espo espp esps esse esso essp o-eo obbo obec ober obes oboe obor obos obre obro obsr obss ocbc occc oce ocee ocos ocpp ocre ocro ocrr ocrs oec- oecc oeec oeps oere oers oese oobe oocr ooer ooes oooo ooos oops oore oose opec opep oper opes opo- opor opos oppo opps orbb orbe orbo orbs orce orco orcs ore- oreb orec oreo orer ores oro- oroe oror oros orpc orpe orps orro orrs orse orso osbe osbp oscc osce osco osec osee oser oses osoo osor osos osro ossb osse osso pbcc pboc pbrs pbsp pcbc pcbs pccc pcce pccs pcep pcer pcoe pcos pcpb pcpp pcps pcrc pcre pcse pcso pece peco pecr pecs peec peep peer pees peor pepe pepo peps per- perc pere pero perp perr pers pese peso pess pobo pobs poce poco pocs poer poes poop poor poos pop- popc pope popo popp pops porb porc pore poro porr pors posb pose poso poss ppcc ppcs pper ppos pppo pppp ppps pprc ppss prbc prbs prcc prcp prcs pre- preb prec pree prep pres pro- prob proc proe proo prop pros prps prrs prsc prse prso prss psbr psco pseb psec psoc psos pspp pspr psps psrp pssc psse psso rbbb rbbr rbbs rbsp rbss rcbc rcbo rccb rccc rccs rcep rcos rcpo rcps rcsc rcss rebb rebe rebo rebs recc rece recp recr recs reeb reep rees reop reos repe repo repp repr reps rere rero rers rese reso resp ress rob- robb robe robo robs rocc roce roco rocs roer roes roob roop roor roos rope ropo rops rorc rore roro rosc rose roso rosp ross rpcs rpob rpoe rpos rpps rrrr rrsp rscc rscs rsee rsos rspb