-er b-p bbb bbc bbd bbe bbo bbp bbr bcb bcc bcd bce bco bcp bcr bcz bdb bdc bdd bde bdo bdp bdr bdz be- beb bec bed bee beo bep ber bez bob boc bod boe boo bop bor boz bpb bpc bpd bpe bpo bpp bpr brb brd bre bro brp brr brz bzd bze bzo bzp bzr bzz c-- cbb cbc cbd cbe cbo cbp cbr cbz ccb ccc ccd cce cco ccp ccr ccz cdb cdc cdd cde cdo cdp cdr cdz ce- ceb cec ced cee ceo cep cer cez co- cob coc cod coe coo cop cor coz cpb cpc cpd cpe cpo cpp cpr cpz crb crc crd cre cro crp crr crz cz- czc czd cze czo dbb dbc dbd dbe dbo dbp dbr dbz dcb dcc dcd dce dco dcp dcr ddb ddc ddd dde ddo ddp ddr ddz de- deb dec ded dee deo dep der dez dob doc dod doe doo dop dor doz dpb dpc dpd dpe dpo dpp dpr dpz drb drc drd dre dro drp drr drz dzb dzd dze dzo dzp dzr ebb ebc ebd ebe ebo ebp ebr ec- ecb ecc ecd ece eco ecr ed- edb edc edd ede edo edp edr eeb eec eed eee eeo eep eer eo- eob eoc eod eoe eoo eop eor ep- epb epc epd epe epo epp epr epz erb erc erd ere ero erp err erz eze ezo ezr ezz ob- obb obc obd obe obo obp obr oc- ocb occ ocd oco ocp ocr ocz odb odc odd ode odo odp odr oeb oec oed oee oeo oep oer oo- oob ooc ood ooo oop oor op- opb opc opd ope opo opp opr or- orb orc ord ore oro orp orr orz oze ozo ozz p-p pbb pbc pbd pbe pbo pbp pbr pbz pcb pcc pcd pce pco pcp pcr pdb pdc pdd pde pdo pdp pdr pdz peb pec ped pee peo pep per pez pob poc pod poe poo pop por poz ppb ppc ppd ppe ppo ppp ppr ppz prb prc prd pre pro prp prr prz pzc pzp rbb rbc rbd rbe rbo rbp rbr rcb rcc rcd rce rco rcp rcr rdb rdc rdd rde rdo rdp rdr re- reb rec red ree reo rep rer rez rob roc rod roe roo rop ror roz rpb rpc rpd rpe rpo rpp rpr rpz rrb rrc rrd rrp rrr rzb rze rzo zbb zbc zbr zce zco zeb zec zed zee zeo zep zer zez zo- zob zoc zod zoe zoo zor zpc zpe zpo zpp zpr zro zrp zzr zzz

bbbb bbdd bbdo bbeb bbpr bbrc bcbc bcbp bccc bcde bcec bcer bcor bcoz bcpp bd-r bdbc bddc bdpc bebb bebe bebo bede bedo beeb beed beep beer beo- beod beor bepo berc berd bere bero berr bezd beze bobb bobe bobo boce boco bodb bode bodo boec boee boeo boep boer boob booc bood booe boop boor booz bope bopp bor- bord bore boro borr borz bozo bpcp bpoe bprc bprd brcb brce brdo breb brec bred bree breo brep brer brez brob broc brod broe broo bror broz brrr bzer bzoe bzzz c-bo c-cd cbbc cbcc cbce cbcp cbcr cbdb cbdc cbdo cbec cbee cber cbpc cbpp cbrd cbre ccbc cccb cccc cccp ccdc ccdp ccdr cced ccee ccob ccoc ccod ccpe ccpp ccpr ccrc ccre ccrp cd-e cd-r cddb cddr cdec cder cdre cebp cec- cece ceco cecp cedd cede cedo ceeb ceec ceop ceor cepc cepe cepo cepp cepr cer- cerc cerd cere cero cerp ceze cobb cobe cobo coce coco cocp codd code coed coep coob cood coop copd cope copo copp copr cor- corb corc cord core coro corp corr cozd coze cozz cpbc cpce cpeb cpep cper cppd cpre crbc crcc crce crcr crcz crdc cre- creb crec cred cree creo crep crob croc crod croe croo crop cror croz crpc d-bo dbcc dbcp dbpc dbpd dcbc dccb dccc dccp dcdb dcop dcpo dddd ddoc ddpo ddrc ddre debe dec- decc decd dece deco dedd dede dedo deeb deed deep deer deop deor depc depe depo depp depr der- derb derc dere dero derp derr deze dobb dobe doce doco dod- dodd dode dodo doer doob dood doop door dope dopo dopp dopr dorc dord dore doro dorp dorr doze dozo dpbc dpcp dper dppc drbc dred dree drob drod drop droz dzbb dzep dzor dzrr dzze ebbc ebbo ebbr ebcc ebed eber eboe eboo ebor ebpo ebro ecbc ecbe eccb eccc ecce ecco ecdc eced eco- ecod ecop ecpd ecpp ecrc ecrr eddc edde eddo eddp ede- eder edoc edod eede eeee eeoc eerc eero eeze eocd eode eore epcc epec epee eper epoc epod epor eppc eppo eppp eprb epro eprp erbb erbe ercc erce ercp erde ereb erec ered erer erez erob eroc erod eroe eroo erpe errc erre erro ezed ezer ezod ezop ezzo o-eo obbo obec obed ober oboe obor obre obro ocbc occc oce oced ocee ocpd ocpp ocre ocro ocrr odbo oddd oded odeo oder odoo odop odor odrp oec- oecc oedo oeec oere oobe oocr ooer oooo oord oore ooze opec oped opep oper opo- opor oppo orbb orbe orbo orce orco orde ordo ore- oreb orec ored oreo orer oro- oroe oror oroz orpc orpe orro orzo ozd ozee ozer pbcc pbed pboc pcbc pccc pcce pcep pcer pcod pcoe pcpb pcpp pcrc pcrd pcre pdcp pdoc pdpr pdrc pece peco pecr pecz ped- pede pedo peec peed peep peer peor pepd pepe pepo per- perc perd pere pero perp perr peze pezo pobo pocd poce poco pod- podd pode podo poed poer pood poop poor pop- popc pope popo popp porb porc pore poro porr porz poze pozo ppcc ppcd pper ppod pppd pppo pppp pprc prbc prcc prcd prcp pre- preb prec pred pree prep prez pro- prob proc prod proe proo prop proz prpd prrd rbbb rbbr