-er b-p bbb bbc bbe bbm bbo bbp bbr bbt bcb bcc bce bcm bco bcp bcr bct be- beb bec bee bem beo bep ber bet bmb bmc bme bmm bmo bmp bmr bmt bob boc boe bom boo bop bor bot bpb bpc bpe bpm bpo bpp bpr bpt brb bre brm bro brp brr brt btb btc bte btm bto btp btr btt c-- cbb cbc cbe cbm cbo cbp cbr cbt ccb ccc cce ccm cco ccp ccr cct ce- ceb cec cee cem ceo cep cer cet cmb cmc cme cmm cmo cmp cmr cmt co- cob coc coe com coo cop cor cot cpb cpc cpe cpm cpo cpp cpr cpt crb crc cre crm cro crp crr crt ctb ctc cte ctm cto ctp ctr ctt ebb ebc ebe ebm ebo ebp ebr ebt ec- ecb ecc ece ecm eco ecr ect eeb eec eee eem eeo eep eer eet em- emb emc eme emm emo emp emr emt eo- eob eoc eoe eom eoo eop eor eot ep- epb epc epe epm epo epp epr ept erb erc ere erm ero erp err ert etb etc ete etm eto etp etr ett m-o m-r mbb mbc mbe mbm mbo mbp mbr mbt mc- mcb mcc mce mcm mco mcp mcr mct meb mec mee mem meo mep mer met mmb mmc mme mmm mmo mmp mmr mmt mob moc moe mom moo mop mor mot mpb mpc mpe mpm mpo mpp mpr mpt mrb mrc mre mrm mro mrp mrr mrt mtb mtc mte mtm mto mtp mtr mtt ob- obb obc obe obm obo obp obr obt oc- ocb occ ocm oco ocp ocr oct oeb oec oee oem oeo oep oer oet om- omb omc ome omm omo omp omr omt oo- oob ooc oom ooo oop oor oot op- opb opc ope opm opo opp opr opt or- orb orc ore orm oro orp orr ort ot- otb otc ote otm oto otp otr ott p-p pbb pbc pbe pbm pbo pbp pbr pbt pcb pcc pce pcm pco pcp pcr pct peb pec pee pem peo pep per pet pmb pmc pme pmm pmo pmp pmr pmt pob poc poe pom poo pop por pot ppb ppc ppe ppm ppo ppp ppr ppt prb prc pre prm pro prp prr prt pt- ptb ptc pte ptm pto ptp ptr ptt rbb rbc rbe rbm rbo rbp rbr rbt rcb rcc rce rcm rco rcp rcr rct re- reb rec ree rem reo rep rer ret rmb rmc rme rmm rmo rmp rmr rmt rob roc roe rom roo rop ror rot rpb rpc rpe rpm rpo rpp rpr rpt rrb rrc rrm rrp rrr rrt rtb rtc rte rtm rto rtp rtr rtt tbb tbc tbe tbm tbo tbp tbr tbt tcb tcc tce tcm tco tcp tcr tct te- teb tec tee tem teo tep ter tet tmb tmc tme tmm tmo tmp tmr tmt to- tob toc toe tom too top tor tot tpb tpc tpe tpm tpo tpp tpr tpt trb trc tre trm tro trp trr trt ttb ttc tte ttm tto ttp ttr ttt

bbbb bbcm bbeb bbet bbpr bbrc bcbc bcbp bccc bccm bcec bcer bcet bcmp bcor bcpp bctc bebb bebe bebo beeb beem beep beer beet beme beo- beor beot bepo berc bere berm bero berr bert betc bete beto bett bmce bmep bmoc bmop bmpt bmtc bobb bobe bobo boce bocm boco boec boee boeo boep boer boet bomb bome bomp bomt boob booc booe boom boop boor boot bope bopp bor- bore borm boro borr bort botb bote boto bott bpcp bpmc bpoe bpot bprc brcb brce breb brec bree brem breo brep brer bret brmc brob broc broe brom broo bror brot brrm brrr brtc btbp btcc btec btob btor btrc btrt bttb c-bo cbbc cbcc cbce cbcm cbcp cbcr cbct cbec cbee cber cbet cbme cbot cbpc cbpp cbre cbrm cbrt cbtc ccbc cccb cccc cccm cccp ccee ccmb ccmc ccmm ccmp ccob ccoc ccom ccpe ccpm ccpp ccpr ccrc ccre ccrp ccrt cctb cctc cctt cebp cec- cece cecm ceco cecp cect ceeb ceec ceem cemb ceme cemm cemp cemr ceop ceor cepc cepe cepo cepp cepr cept cer- cerc cere cero cerp cert cet- cete ceto cetp cmbc cmcc cmec cmmb cmmc cmoc cmot cmpc cmpp cmrr cmtc cobb cobe cobo coce coco cocp coct coep com- comb comc come comm como comp comr coob coom coop coot cope copo copp copr copt cor- corb corc core corm coro corp corr cort cotb cotc cote coto cott cpbc cpce cpcm cpeb cpep cper cpme cpmp cppm cpre cprm cprt cptp cptr crbc crcc crce crcr cre- creb crec cree crem creo crep cret crmb crmo crmp crob croc croe crom croo crop cror crot crpc crrt crtc crtm crtp ctcp ctec ctep ctmo ctor ctot ctpo ctpp ctrc ctrm ctrp ebbc ebbo ebbr ebcc eber eboe eboo ebor ebpo ebro ecbc ecbe eccb eccc ecce eccm ecco ecct ecem ecmp eco- ecop ecot ecpm ecpp ecrc ecrm ecrr ect- ectc ecto eeee eemo eeoc eerc eero eetc eete embe embo embr emcc emco emer emet emme emor empc empe empt emre emte emtp eore eotc eoto epbm epcc epec epee eper epmo epoc epor epot eppc eppo eppp eprb epro eprp epte erbb erbe ercc erce ercp ereb erec erem erer eret ermc erme ermo erob eroc eroe eroo erpe errc erre erro etbc etbr etcc etco etec etee etem eter etoe etre etrm etro ette etto mcbc mccc mcep mcmc mcmt mcop mcot mcpb mcpc mcpp mcrc mctc mebe mebo mec- mecc mece meco mecr meem meep meer meet memc meme memo memr meoc meor mepe mer- merb merc mere merm mero merp mert met- mete meto mett mmcc mmcm mmct mmmc mmmm mmor mmpc mmpr mmrc mmrp mobb mobe mobo moco moet mome momo moob mooc mooe moop moor moot mope mopp