-er b-p bbb bbc bbd bbe bbo bbp bbr bbs bcb bcc bcd bce bco bcp bcr bcs bdb bdc bdd bde bdo bdp bdr bds be- beb bec bed bee beo bep ber bes bob boc bod boe boo bop bor bos bpb bpc bpd bpe bpo bpp bpr bps brb brd bre bro brp brr brs bsb bsc bsd bse bso bsp bsr bss c-- cbb cbc cbd cbe cbo cbp cbr cbs ccb ccc ccd cce cco ccp ccr ccs cdb cdc cdd cde cdo cdp cdr cds ce- ceb cec ced cee ceo cep cer ces co- cob coc cod coe coo cop cor cos cpb cpc cpd cpe cpo cpp cpr cps crb crc crd cre cro crp crr crs csb csc csd cse cso csp csr css dbb dbc dbd dbe dbo dbp dbr dbs dcb dcc dcd dce dco dcp dcr dcs ddb ddc ddd dde ddo ddp ddr dds de- deb dec ded dee deo dep der des dob doc dod doe doo dop dor dos dpb dpc dpd dpe dpo dpp dpr dps drb drc drd dre dro drp drr drs dsb dsc dsd dse dso dsp dsr dss ebb ebc ebd ebe ebo ebp ebr ebs ec- ecb ecc ecd ece eco ecr ecs ed- edb edc edd ede edo edp edr eds eeb eec eed eee eeo eep eer ees eo- eob eoc eod eoe eoo eop eor eos ep- epb epc epd epe epo epp epr eps erb erc erd ere ero erp err ers es- esb esc esd ese eso esp esr ess ob- obb obc obd obe obo obp obr obs oc- ocb occ ocd oco ocp ocr ocs odb odc odd ode odo odp odr ods oeb oec oed oee oeo oep oer oes oo- oob ooc ood ooo oop oor oos op- opb opc opd ope opo opp opr ops or- orb orc ord ore oro orp orr ors os- osb osc osd ose oso osp osr oss p-p pbb pbc pbd pbe pbo pbp pbr pbs pcb pcc pcd pce pco pcp pcr pcs pdb pdc pdd pde pdo pdp pdr pds peb pec ped pee peo pep per pes pob poc pod poe poo pop por pos ppb ppc ppd ppe ppo ppp ppr pps prb prc prd pre pro prp prr prs ps- psb psc psd pse pso psp psr pss rbb rbc rbd rbe rbo rbp rbr rbs rcb rcc rcd rce rco rcp rcr rcs rdb rdc rdd rde rdo rdp rdr rds re- reb rec red ree reo rep rer res rob roc rod roe roo rop ror ros rpb rpc rpd rpe rpo rpp rpr rps rrb rrc rrd rrp rrr rrs rsb rsc rsd rse rso rsp rsr rss sbb sbc sbd sbe sbo sbp sbr sbs scb scc scd sce sco scp scr scs sdb sdc sdd sde sdo sdp sdr sds se- seb sec sed see seo sep ser ses sob soc sod soe soo sop sor sos spb spc spd spe spo spp spr sps sr- srb src srd sre sro srp srr srs ss- ssb ssc ssd sse sso ssp ssr sss

-ose bbbb bbbs bbdd bbdo bbeb bbpr bbrc bcbc bcbp bcbs bccc bccs bcde bcds bcec bcer bces bcor bcos bcpp bcps bcrs bcsc bcss bd-r bdbc bddc bdes bdos bdpc bdsd bebb bebe bebo becs bede bedo beds beeb beed beep beer bees beo- beod beor beos bepo berc berd bere bero berr bers bes- bese beso bess bobb bobe bobo bobs boce boco bocs bodb bode bodo bods boec boee boeo boep boer boes boob booc bood booe boop boor boos bope bopp bops bor- bord bore boro borr bors bosc bose boso boss bpcp bpoe bprc bprd brcb brce brdo brds breb brec bred bree breo brep brer bres brob broc brod broe broo bror bros brrr brrs brsb brsr bsbd bscp bscs bseb bsec bsed bsee bser bses bsod bsos bspp bspr bsrd bssc bssd bsse c-bo c-cd cbbc cbbs cbcc cbce cbcp cbcr cbcs cbdb cbdc cbdo cbds cbec cbee cber cbpc cbpp cbrd cbre cbsc cbse ccbc cccb cccc cccp cccs ccdc ccdp ccdr ccds cced ccee ccob ccoc ccod ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccsd ccsp ccss cd-e cd-r cdcs cddb cddr cdec cder cdes cdos cdps cdre cdrs cdss cebp cebs cec- cece ceco cecp cecs cedd cede cedo ceeb ceec cees ceop ceor ceos cepc cepe cepo cepp cepr ceps cer- cerc cerd cere cero cerp cers cesc cese cesp cesr cess cobb cobe cobo cobs coce coco cocp codd code cods coed coep coes coob cood coop coos copd cope copo copp copr cops cor- corb corc cord core coro corp corr cors cosc cose coso cosp coss cpbc cpce cpcs cpeb cpep cper cpos cppd cpps cpre cprs cpsc cpso cpsr crbc crcc crce crcr crdc cre- creb crec cred cree creo crep cres crob croc crod croe croo crop cror crpc crps crsp crss cscb cscc cscd csce csco cscr cscs csdb csdp csdr csec csee csep cser csob csor csos cspb cspc cspd cspe csps csrc csrd csrs cssd csse cssr d-bo dbcc dbcp dbcs dbos dbpc dbpd dbrs dbss dcbc dccb dccc dccp dccs dcdb dcds dcop dcos dcpo dcps dcsc dcss dddd ddes ddoc ddpo ddps ddrc ddre ddss debe debs dec- decc decd dece deco decs dedd dede dedo deeb deed deep deer dees deop deor deos depc depe depo depp depr deps der- derb derc dere dero derp derr ders des- desc dese deso desp dess dobb dobe dobs doce doco docs dod- dodd dode dodo dods doer does doob dood doop door doos dope dopo dopp dopr dops dorc dord dore doro dorp dorr dors dose doso doss dpbc dpcp dper dpos dppc dpsd drbc dred dree dres drob drod drop drrs drsp dsbc dscc dscp dscr dscs dsdp dsdr dsos dsps dsrc dsrp dsrr dssc dssp ebbc ebbo