bbbb bbci bbdd bbdo bbfc bblb bcbc bccc bcci bccl bcfc bcof bcuc bdbc bddc bdii bduf bffl bibb bibi bibl bibo bicc bici bico bidi bido bidu biff bifi bild bili bill bilo bilu bio- bioc bioi biol biou blcu bldc blfc blic blio blob bloc blod bloo blou blub blud bluf bobb bobi bobo bobu boco bocu bodb bodi bodo bodu bofd boff bofu boi- boid boii boil boiu bold boli boll bolo bolu boob booc bood boof bool boud bouf boul bubb bubi bubo bubu bucc buci buco bucu budb budd budi budl budo budu bufc buff bufo buic buid buif buiu bulb buld buli bull bulu buol c-bo c-cd cbbc cbcc cbcl cbcu cbdb cbdc cbdi cbdo cbfb cbfc cbid cblb cblc cbol ccbc cccb cccc cccf ccci cccl cccu ccdc ccdf ccdi ccfc ccfd ccff ccfi ccfl ccic ccid ccii ccil cclc ccli ccob ccoc ccod ccuc cdbf cddb cddl cdic cdii cdio cdli cfbc cfcb cfcf cfcl cfco cffb cibc cibi cibo cicc cici cico cicu cidc cidi ciff cifl ciid ciii cili cill cilo ciob ciuc clcd cldc clib clic clif clii clio clob clod clof cloo clou club clud cobb cobi cobo cobu coco cocu codd codi codl cofc coff cofi coif coil col- colb cold coli coll colo colu coob cood coof cool coub coud coul cub- cubb cubi cucc cuci cudi cufc cuff cufi cufo cui- cuif cuil culb culc culd cull culo d-bo dbcc dbfc dbfo dcbc dccb dccc dcci dccl dccu dcdb dcfc dcii dcil dcio dcli dddd ddlc ddoc ddub dfcc dfco dfcu dibb dibo dici dico didi dido didu dif- diff diii dilf dili dill dilo dioc diol diou dlbd dlco dlib dlii dlil dobb dobi dobl dobu doci doco docu dod- dodd dodi dodo doff doid doil dold dolf doli doll dolo dolu doob dood doof dool doub douc doud douf doul dub- dubb dubc dubu duco dudd dudo dudu dufc duff dufu duid duif duil dulc duli dull dulo dulu duo- duul fccf fcic fcii fdic fdoc ffcc ffff ffii ficc fico fidc fidf fido fifc fiff fifi fifo fiii fiil fild fili fill filo flcl flic flid flii flob floc flod floo flou flub flud fluf fluo foci foco fofo foid foil folc fold foli foll folo food foof fool foud foul fubb fubu fuc- fuci fudd fudi fufc fuff fufu fuid fuil fuli full fulu ibdo ibfi ibid icbc icbd iccb iccc iccf icci iccl icco iccu icdc icdd icdl icfb icll icoc icod icub iddo idfc idic idid idil idio idli idoc idol idub iduo ifbb ifcd ifco ific ifid ifil iicd iiii iiio iioi iioo iiuc ilbc ilcd ilic ilio ill- illd illi illo iloc iloo ilud iobi ioci iod- iodd iodo iofc ioii ioio iolo ioof iooi iooo iucc iuiu lbcc lcbc lccc lcdd lcfc ldcf ldci ldif lfcc libc libo libu lico lidb lidl lido liff lifl lifo liii lilb lili lill lilo lilu lio- liod liuf llcc lldb lldc lllc llll lloc llod lloo llud lob- lobb lobi lobo locc loci loco locu lodi loff lofi loic loid loif loiu lold loli loll lolo loob looc lood loof lool loud loui loul louu luci ludd ludi ludo luff lufu luif luli lull lulu obbo obid oblu oboi obol ocbc occc occi oclc ocul odbo odci oddd oddi odic odio odiu odoo odou ofcl off- offc offo offu ofid oici oido oiii olbo olcc oldb olib olic olid olio olli ollo olof oobi oodi ooff ooid oold oolo oooo oucc oudc oufc ouff ouii ould oulu ouu- ubbi ubbo ubic ubid ubii ubli ublo uboc ubod ubud ucbc ucci ucdc ucdd ucfb ucil ucio udbc uddi udic udid udoo ufcu ulbc ulcc ulco ulic ulli ullo ulo- uloc ulul uocc uofl uofo uolc uulu uuoc uuuu