bbbb bblb bcbc bcbg bccc bccl bcuc blcu blkb blob bloc blog blok bloo blou blub bobb bobo bobu bock boco bocu bogg bogo boko boku bolg bolk boll bolo bolu boob booc boog book bool bouk boul bubb bubo bubu bucc buck buco bucu bugg bugo bukk buko buku bulb bulg bulk bull bulu buol c-bo cbbc cbcc cbcl cbcu cbgb cbkg cbkl cbko cblb cblc cbol ccbc cccb cccc cccl cccu ccgc cclc cclg ccob ccoc ccuc cgcc cgcg ckbc ckck ckcl ckco ckgl ckgo cklg ckob ckoc ckoo clkg clob clog clok cloo clou club cobb cobo cobu cock coco cocu cogo cok- coko col- colb colk coll colo colu coob cook cool coub couk coul cub- cubb cucc cuck cuk- culb culc culk cull culo gbbo gc-c gcbc gccc gclc ggcl gggg glbc glcc glob glog glou glub glug gobl gobo gogo goku golk goll golo golu goog gook gool gou- goug gouk goul gubb gubu guck gugb gugg gugu gulb gull gulo gulu k-lo kbbb kbbc kbbg kbbk kbbl kbbo kbbu kbcb kbck kbcl kbco kbcu kbgb kbgg kbgl kbgo kbkb kbkg kbkk kbkl kbko kblb kblg kbll kblo kblu kbob kboc kbok kboo kbub kbuc kbuk kbul kbuu kcbc kcbk kcbl kcbu kccb kccc kcck kccl kccu kcgc kcgl kckc kckk kckl kcko kclc kclk kcll kclu kcob kcog kcol kcou kcub kcuk kcul kgbb kgbc kgcb kgcc kgcl kggg kggl kggo kgkl kglb kglk kglo kgol kgou kkbb kkbg kkbl kkbo kkcb kkck kkcl kkco kkgb kkgl kkgo kkkk kklb kklc kkll kklo kkob kkol kkoo kkuu klbb klbc klbl klbu klcb klcc klck klcl klgb klgl klgo klgu klkc klkk klkl klko kllb kllc kllk klob kloc klog klok klol kloo klou klub klug kluk kluu kobb kobc kobk kobo kobu kocb kock kogb kogg kogl kogo kogu kokb kokc kokk koko koku kolb kolc kolg kolk koll kolo kolu koob kooc koog kook kool kooo koou koub koul kouu kubb kubc kubo kubu kucb kucc kuco kugb kugo kukk kukl kuku kulb kull kulo kulu kuok kuol kuoo kuub kuuk kuul kuuu lbcc lbug lcbc lccc lgbu llcc llgc lllc llll lloc lloo lob- lobb lobo locc lock loco locu log- logb logo lokk loko loll lolo loob looc look lool louk loul louu luck lugg lugo lugu luko lull lulu luuk obbo obkb oblu obok obol ocbc occc oclc ocul ogb ogog ogou okcu okgo okko oklo okok okol okul olbo olcc olgc ollo olog ooku oolo oooo oucc oulk oulu ouu- ubbo ublo uboc ucbc ugcc ugcg uggo ugol uguu ukcc ukko ukok ulbc ulcc ulco ullo ulo- uloc ulog uluk ulul uocc uolc uulu uuoc uuuu