-er -ol b-u bbb bbc bbe bbl bbo bbr bbu bbx bcb bcc bce bcl bco bcr bcu bcx be- beb bec bee bel beo ber beu bex blb blc ble bll blo blr blu blx bob boc boe bol boo bor bou box brb bre brl bro brr bru brx bub buc bue bul buo bur buu bux bxb bxl bxo bxx c-- cbb cbc cbe cbl cbo cbr cbu cbx ccb ccc cce ccl cco ccr ccu ccx ce- ceb cec cee cel ceo cer ceu cex cl- clb clc cle cll clo clr clu clx co- cob coc coe col coo cor cou cox crb crc cre crl cro crr cru crx cub cuc cue cul cuo cur cuu cxc cxl cxo cxr cxx ebb ebc ebe ebl ebo ebr ebu ebx ec- ecb ecc ece ecl eco ecr ecu ecx eeb eec eee eel eeo eer eex elb elc ele ell elo elr elu elx eo- eob eoc eoe eol eoo eor eou erb erc ere erl ero err eru eu- eub euc eue eul eur eux ex- exc exe exl exo exr exu exx lbb lbc lbe lbl lbo lbr lbu lbx lcb lcc lce lcl lco lcr lcu lcx leb lec lee lel leo ler leu lex llb llc lle lll llo llr llu lob loc loe lol loo lor lou lox lrb lrc lro lrr lru lub luc lue lul luo lur luu lux lxc lxo lxr lxx ob- obb obc obe obl obo obr obu obx oc- ocb occ ocl oco ocr ocu ocx oeb oec oee oel oeo oer oex olb olc ole oll olo olu oo- oob ooc ool ooo oor oox or- orb orc ore orl oro orr oru orx ou- ouc oue oul ouo our ox- oxb oxc oxo oxx rbb rbc rbe rbl rbo rbr rbu rbx rcb rcc rce rcl rco rcr rcu rcx re- reb rec ree rel reo rer reu rex rlc rle rll rlo rlr rlu rob roc roe rol roo ror rou rox rrb rrc rrl rrr rru rub ruc rue ruo rur ruu rux rxr ubb ubc ube ubl ubo ubr ubu ubx ucb ucc uce ucl uco ucr ucu ueb uec uee uel uer ulb ulc ule ull ulo ulr ulu uob uoc uoe uol uoo uor uox ur- urb urc ure url uro urr uru urx uuc uue uur uuu uxb uxc uxo uxr uxu xbc xbe xbl xbr xbx xcb xcl xcr xcx xee xel xer xeu xex xlb xlr xoc xoo xor xox xrc xrx xue xul xxl xxo xxx

bbbb bbeb bblb bbox bbrc bcbc bccc bccl bcec bcer bcor bcru bcuc bebb bebe bebo becu beeb beel beer bele bell belo belu beo- beor berc bere bero berr beru beur beux blcu bleb blee bleo bleu blob bloc bloo blou blrc blub blue blur bobb bobe bobo bobu boce boco bocu boec boee boel boeo boer bole boll bolo bolu boob booc booe bool boor boox bor- bore boro borr boru boue boul bour brcb brce breb brec bree brel breo brer brex brob broc broe brol broo bror brou brox brrr bruc brue brux bubb bube bubo bubu bucc buce buco bucu buel buer bueu bulb bule bull bulu buol bur- burb bure burl buro burr buru c-bo cbbc cbcc cbce cbcl cbcr cbcu cbec cbee cber cblb cblc cbol cbox cbre cbrl cbux ccbc cccb cccc cccl cccu ccee ccel cclc cclx ccob ccoc ccrc ccre ccrl ccuc ccxl cebu cec- cece ceco ceeb ceec ceel cel- celc cele cell celo ceol ceor ceou cer- cerc cere cerl cero ceux cexe clec clee cleo cler cleu clob cloe cloo clor clou clox clro club clue clux clxx cobb cobe cobo cobu coce coco cocu coel coex col- colb cole coll colo colu coob cool cor- corb corc core corl coro corr coub coue coul cour coux coxe crbc crbu crcc crce crcr cre- creb crec cree creo creu crex crob croc croe crol croo cror crub crue crux cub- cubb cube cucc cuce cuer culb culc cule cull culo curb cure curl curo curr cxro cxxx e-cl ebbc ebbo ebbr ebcc ebel eber eboe ebol eboo ebor ebox ebro ebru ebul ebur ecbc ecbe eccb eccc ecce eccl ecco eco- ecol ecou ecrc ecrl ecrr ecru eeee eele eeoc eerc eero el-b elbe elbo elbu elcb elce elco elec elee eleo eler elex elle ello ellu elro elue elul eole eolo eore eorl eoux er-x erbb erbe ercc erce ereb erec erel erer erle erll erob eroc eroe erol eroo errc erre erro erub eruc erur eubc euer eule eur- eurc eure euro excl exco exec exel exer exo- exor exrx exul lbcc lblr lcbc lccc lcce lcer lcor lcrl le-u lebo lebu lece leco leel leer lele lell lelo lelu leoc leor leou leox lerc lere lero leuc leur lexx llcc lleu lllc llll lloc lloo lob- lobb lobe lobo locc loce loco locu loeb loeu lole loll lolo loob looc looe lool loor lore loro loue loul lour louu loux lox- loxo lroc lrrc lrrr lube luce luer lule lull lulu lure luxe luxo lxxx o-eo obbo obec obel ober obex oble oblu oboe obol obor obox obre obro ocbc occc oce ocee oclc ocre ocrl ocro ocrr ocul ocur oec- oecc oeec oele oere olbo olcc ole- oleo oler olle ollo olor olur olux oobe oocr ooer oolo oooo oore orbb orbe orbo orbu orce orco ore- oreb orec orel oreo orer orex orle orlo orlu oro- oroe oror orro orub oucc ouer oule oulu oulx our- oure ouro ouu- oxer oxo- oxox oxxo rbbb rbbr rbcl rble rcbc rcbo rccb rccc rcle rebb rebe rebo rebu recc rece recr recu reeb reel relb rele rell relo reol reou rere rero reru reue reul reuu reux rexx rlee rleu rob- robb robe robo robu rocc roce roco roel roer role roll rolo roob rool roor roox rorc rore roro roru