bbbb bbfc bblb bbwc bcbc bccc bccl bcfc bcof bcuc bffl blcu blfc blob bloc bloo blou blow blub bluf blw- bobb bobo bobu bobw boco bocu boff bofu boll bolo bolu boob booc boof bool boow bouf boul bouw bowl bubb bubo bubu bucc buco bucu bufc buff bufo bulb bull bulu buol bwfc bwoc c-bo cbbc cbcc cbcl cbcu cbfb cbfc cblb cblc cbol cbwf ccbc cccb cccc cccf cccl cccu ccfc ccff ccfl cclc ccob ccoc ccow ccuc cfbc cfcb cfcf cfcl cfco cfcw cffb cfwc clob clof cloo clou clow club cobb cobo cobu coco cocu cofc coff col- colb coll colo colu coob coof cool coub coul cowl cub- cubb cucc cufc cuff cufo culb culc cull culo cwbl cwfc fccf ffcc ffff flcl flob floc floo flou flow flub fluf fluo foco fofo folc foll folo foof fool foul fowl fubb fubu fuc- fufc fuff fufu full fulu fwcc fwfc lbcc lcbc lccc lcfc lfcc llcc lllc llll lloc lloo lob- lobb lobo locc loco locu loff loll lolo loob looc loof lool loul louu louw lowb lowl lowu loww luff lufu lull lulu luwo luwu lwfc lwoo lwow obbo oblu obol ocbc occc oclc ocul ofcl off- offc offo offu olbo olcc ollo olof ooff oolo oooo oucc oufc ouff oulu ouu- owow owul ubbo ublo uboc ucbc ucfb ufcu ufcw ufwc ulbc ulcc ulco ullo ulo- uloc ulow ulul uocc uofl uofo uofw uolc uulu uuoc uuuu uwfc wbbb wbbf wbbl wbbo wbbw wbcb wbcf wbcl wbco wbcu wbcw wbfb wbfc wbff wbfo wbfw wblb wblc wblf wbll wblo wblu wblw wbob wboc wbol wbow wbuc wbuf wbul wbuw wbwb wbwc wbwl wbwo wcbc wcbl wcbu wcbw wccb wccc wccf wccl wcco wccu wccw wcfb wcfc wcfl wcfo wcfw wclb wclc wclf wcll wclo wclu wclw wcob wcoc wcol wcoo wcou wcub wcuw wcwb wcwc wcwf wfbc wfbf wfbl wfcc wfcf wfcl wfco wfcu wffc wfff wflb wflc wflf wfll wflo wflw wfob wful wfwc wfwl wfwo wlbb wlbc wlbf wlbl wlbw wlcc wlcl wlco wlcu wlfc wlff wlfl wlfw wllf wlll wllw wlob wloc wlof wlol wloo wlou wlub wluw wlwc wlwf wlwl wobb wobc wobl wobo wocb wocc wocl woco wocu wofc woff wofl wolb wolf woll wolw woob wooc woof wool woow woub wouc wouf woul wouw wowb wowc wowf wowl wowo woww wubb wubl wubu wucf wucl wuco wucw wufc wuff wufl wufo wulc wulf wull wulu wuub wuuf wuuu wuwf wwbb wwbc wwbf wwbl wwbu wwcb wwcf wwcl wwco wwcu wwcw wwfc wwfl wwfw wwlb wwlc wwlf wwll wwlu wwlw wwof wwol wwow wwuf wwwc wwwl wwww