bbbb bbci bblb bcbc bcbg bccc bcci bccl bcuc bibb bibi bibl bibo bicc bicg bici bico bigb bigc bigg bigo bigu bili bill bilo bilu bio- bioc biog bioi biol biou blcu blic blio blob bloc blog bloo blou blub bobb bobi bobo bobu boco bocu bogg bogi bogo boi- boii boil boiu bolg boli boll bolo bolu boob booc boog bool boul bubb bubi bubo bubu bucc buci buco bucu bugg bugi bugo buic buiu bulb bulg buli bull bulu buol c-bo cbbc cbcc cbcl cbcu cbgb cblb cblc cbol ccbc cccb cccc ccci cccl cccu ccgc ccic ccii ccil cclc cclg ccli ccob ccoc ccuc cgcc cgcg cibc cibi cibo cicc cici cico cicu cigi cigu ciii cili cill cilo ciob ciuc clib clic clig clii clio clob clog cloo clou club cobb cobi cobo cobu coco cocu cogi cogo coil col- colb coli coll colo colu coob cool coub coul cub- cubb cubi cucc cuci cui- cuil culb culc cull culo gbbo gc-c gcbc gccc gcic gcii gclc ggcl gggg gibb gigg gigi gigo gilg gili gill gilo giog gioi glbc glcc gli- glib glic glob glog glou glub glug glui gobi gobl gobo gogi gogo goli goll golo golu goog gooi gool gou- goug goul gubb gubi gubu guci gugb gugg gugi gugu guib guil gulb guli gull gulo gulu i-go icbc iccb iccc icci iccl icco iccu icgc icll icoc icub igbc igbo igcc igil igli iglo iglu igoo iiii iiio iioi iioo iiuc ilbc ilic ilio ill- illi illo iloc ilog iloo iobi iocg ioci ioii ioio iolo iooi iooo ioug iucc iuiu lbcc lbug lcbc lccc lgbu libc libo libu lico ligc ligg ligi ligo liig liii lilb lilg lili lill lilo lilu lio- llcc llgc lllc llll lloc lloo lob- lobb lobi lobo locc loci loco locu log- logb logi logo loic loiu loli loll lolo loob looc lool loui loul louu luci lugg lugi lugo lugu luli lull lulu obbo oblu oboi obol ocbc occc occi oclc ocul ogb oggi ogli ogog ogoi ogou ogui oici oigo oiii olbo olcc olgc olib olic olig olio olli ollo olog oobi oolo oooo oucc ouii oulu ouu- ubbi ubbo ubic ubii ubli ublo uboc ucbc ucci ucil ucio ugcc ugcg uggo ugli ugol uguu ulbc ulcc ulco ulic ulli ullo ulo- uloc ulog ulul uocc uolc uulu uuoc uuuu