-er -ol b-u bbb bbe bbl bbo bbr bbt bbu bbx be- beb bee bel beo ber bet beu bex blb ble bll blo blr blt blu blx bob boe bol boo bor bot bou box brb bre brl bro brr brt bru brx btb bte btl bto btr btt btu btx bub bue bul buo bur but buu bux bxb bxl bxo bxx ebb ebe ebl ebo ebr ebt ebu ebx eeb eee eel eeo eer eet eex elb ele ell elo elr elt elu elx eo- eob eoe eol eoo eor eot eou erb ere erl ero err ert eru etb ete etl eto etr ett etu etx eu- eub eue eul eur eut eux ex- exe exl exo exr ext exu exx lbb lbe lbl lbo lbr lbt lbu lbx leb lee lel leo ler let leu lex llb lle lll llo llr llt llu lob loe lol loo lor lot lou lox lrb lro lrr lrt lru ltb lte ltl lto ltr ltt ltu ltx lub lue lul luo lur lut luu lux lxo lxr lxx ob- obb obe obl obo obr obt obu obx oeb oee oel oeo oer oet oex olb ole oll olo olt olu oo- oob ool ooo oor oot oox or- orb ore orl oro orr ort oru orx ot- otb ote otl oto otr ott otu ou- oue oul ouo our out ox- oxb oxo oxt oxx rbb rbe rbl rbo rbr rbt rbu rbx re- reb ree rel reo rer ret reu rex rle rll rlo rlr rlt rlu rob roe rol roo ror rot rou rox rrb rrl rrr rrt rru rtb rte rtl rto rtr rtt rtu rtx rub rue ruo rur rut ruu rux rxr t-x tbb tbe tbl tbo tbr tbt tbu te- teb tee tel teo ter tet teu tex tle tll tlo tlr tlt tlu tlx to- tob toe tol too tor tot tou tox trb tre trl tro trr trt tru trx ttb tte ttl tto ttr ttt ttu ttx tub tue tul tuo tur tut tuu tux txe txl txt txu ubb ube ubl ubo ubr ubt ubu ubx ueb uee uel uer uet ulb ule ull ulo ulr ult ulu uob uoe uol uoo uor uot uox ur- urb ure url uro urr urt uru urx utb ute utl uto utr utt utu utx uue uur uut uuu uxb uxo uxr uxt uxu xbe xbl xbr xbx xee xel xer xet xeu xex xlb xlr xlt xoo xor xot xox xrt xrx xtr xtx xue xul xxl xxo xxx

bbbb bbeb bbet bblb bbox bebb bebe bebo beeb beel beer beet bele bell belo belt belu beo- beor beot bere bero berr bert beru bete beto bett betu beur beux blbt bleb blee bleo blet bleu blob bloo blot blou blub blue blur blut bobb bobe bobo bobu boee boel boeo boer boet bole boll bolo bolt bolu boob booe bool boor boot boox bor- bore boro borr bort boru botb bote boto bott boue boul bour bout breb bree brel breo brer bret brex brob broe brol broo bror brot brou brox brrr brue brut brux btex btob btor btrt bttb bubb bube bubo bubu buel buer bueu bulb bule bull bult bulu buol bur- burb bure burl buro burr burt buru but- bute buto butt ebbo ebbr ebel eber eboe ebol eboo ebor ebox ebro ebru ebul ebur eeee eele eero eete eetu eext el-b elbe elbo elbu elee eleo eler elet elex elle ello ellu elro elte elto elue elul eole eolo eore eorl eoto eoux er-x erbb erbe ereb erel erer eret erle erll erob eroe erol eroo erre erro ertl ertu erub erur etbr etee etel eter etoe etox etre etro ette etto ettu etux euer eule eur- eure euro eurt exel exer exo- exor exrx exte extl extr exul lblr lbrt le-u lebo lebu leel leer leet lele lell lelo lelu leor leou leox lere lero lert lete leto lett leur lext lexx llet lleu llll lloo lob- lobb lobe lobo loeb loeu lole loll lolo loob looe lool loor loot lore loro lote lotl loto lotr lott loue loul lour lout louu loux lox- loxo lrrr ltbl ltee lttr lube luer lule lull lulu lure lurt lute luxe luxo lxxx o-eo obbo obel ober obet obex oble oblu oboe obol obor obot obox obre obro oele oere olbo ole- oleo oler olet olle ollo olor olot oltu olur olux oobe ooer oolo oooo oore oort ootb orbb orbe orbo orbu ore- oreb orel oreo orer orex orle orlo orlu oro- oroe oror orot orro orte orto orub otee oter oto- otoe otoo otor otre otro otte otto ottu otur ouer oule oulu oulx our- oure ouro ourt out- outb oute outo ouu- oxer oxo- oxox oxxo rbbb rbbr rble rebb rebe rebo rebu reeb reel reet relb rele rell relo relt reol reot reou rere rero rert reru rete reto retr rett reue reul reut reuu reux rexx rlee rleu rob- robb robe robo robt robu roel roer roet role roll rolo rolt roob rool roor root roox rore roro rort roru rote rotl roto rotr rott roub roue roul rout roux roxo rrle rrrr rtee rtex rtle rtlt rubb rube rubu ruel ruer ruet rule rull rulo rure ruro ruru rute rutl ruto rutt rutu tbox tbrb tebo tebu teel teer teet tel- tele tell telo telt telu teor ter- tere tero terr teru tete teto tetr tett tetu tetx teut text tltx tobe tobo tobt tobu toee toer toet tol- tole toll tolo tolt tolu tool toor toot tore toro torr tort toru torx tote toto totr tott toul tour tout tox- toxo toxt tre- tree treo tret treu trex troe troo trot trou trox trte trtr trub true trut truu trux ttbb tteo tter ttoe tttt ttul tubb tube tubo tubr tubu tuel tuer tuet tule tull tulo tulu tuor turb ture turo turr turt turu tute tutl tuto tutt