bbbb bbeb bbfc bboy bbrc bbyo bcbc bccc bcec bcer bcfc bcof bcor bcru bcuc bebb bebe bebo beby becu beeb beef beer beey befe beff befo beo- beof beor berc bere bero berr beru bery beur beye bobb bobe bobo bobu boby boce boco bocu boec boee boef boeo boer boey bofe boff bofu boob booc booe boof boor bor- bore borf boro borr boru bory boue bouf bour bouy boye boyf boyo brcb brce breb brec bree bref breo brer brey brfc brfu brob broc broe broo bror brou brrr bruc brue bry- brye bryo bubb bube bubo bubu bucc buce buco bucu buer bueu bufc bufe buff bufo bufr buoy bur- burb bure buro burr buru bury buyo buyu byce byer byob byoc byre c-bo cbbc cbcc cbce cbcr cbcu cbec cbee cbef cber cbfb cbfc cbre cbry ccbc cccb cccc cccf cccu ccee ccfc ccff ccob ccoc ccrc ccre ccrf ccuc cebu cec- cece ceco ceeb ceec cef- cefc ceor ceou cer- cerc cere cerf cero cery ceyu cfbc cfbr cfcb cfcf cfco cfcy cffb cffr cfor cfrb cfre cfry cobb cobe cobo cobu coby coce coco cocu cofc cofe coff coob coof cor- corb corc core corf coro corr cory coub coue cour couy coyf coyo coyr crbc crbu crcc crce crcr cre- creb crec cree creo creu crfc crob croc croe croo cror croy crub crue cry- cryb cryo cub- cubb cube cuby cucc cuce cuer cufc cuff cufo curb cure curf curo curr cury cuy- cuyo cuyr cybb cybc cybo cyc- cycb cycc cyfe cyre cyy- cyyc ebbc ebbo ebbr ebby ebcc eber ebfc eboe eboo ebor eboy ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecef ecfc ecfr eco- ecou ecrc ecrf ecrr ecru eeby eeee eefe eeoc eerc eero eery efbr efco efeo effy efor eore erbb erbe ercc erce ereb erec erer erfc erob eroc eroe eroo errc erre erro erub eruc erur eryc erye eubc euer eufc eur- eurc eure euro eury eyeb eyec eyer eyey eyre eyry eyyr fccf febo fece feeb feer fefc fefe feff fefo feof ferb ferc fere fero ferr feru fery feyr ffcc ffee ffff ffrr foce foco foer fofo foof for- forb fore foro forr four frbc frcc free freo frey frfc frob froe frou frub frue frye fubb fubu fuc- fufc fuff fufu fuor fur- fure furo furr fury fuyu fyce fyeo fyfe fyre fyry o-eo obbo obby obec ober obey oboe obor oboy obre obro ocbc occc oce ocee ocef ocre ocro ocrr ocur oec- oecc oeec oere oeuf oeye oeyo ofcr ofer off- offc offe offo offr offu offy ofor ofre oobe ooby oocr ooer ooff oofy oooo oore oory orbb orbe orbo orbu orby orce orco ore- oreb orec oreo orer orey orfe orff orfu oro- oroe orof oror oroy orro orry orub oucc ouer oufc oufe ouff our- oure ouro ouu- ouyr oyce oyee oyer oyeu oyou oyre rbbb rbbr rcbc rcbo rccb rccc rcfc rcyc rebb rebe rebo rebu recc rece recr recu recy reeb reef refe reff refr refu reof reou rere rero reru rery reue reuf reuu reye rfef rffc rob- robb robe robo robu roby rocc roce roco roer roey rofc rofe roff rofo roob roof roor rorc rore roro roru rory roub roue rouf rouy roye rrfc rrrr rubb rube rubu ruby ruce ruer rufc rufe ruff rufo ruoy rurc rure ruro ruru rybe ryeb ryfe ryff ryob ryue ryyf ubbe ubbo uber uboc ucbc ucfb ucrc ufcu ufer uffe uocc uofo uor- uore urbe urcy ure- urey urfe urff uro- uroo urre urry urur uuoc uuuu uyre yber ybor ybry yccc ycee ye-u yeer yefe yeff yeof yerb yere yero yerr yery yeue yeye yeyo yeyr yobo yoff yoof yore yoro yory youb youe youf your yoye yoyo yrof yubu yuce yuer yuff yufu yure yury yuye yuyu yyfe yyff yyyy