bbbb bblb bbng bcbc bcbg bccc bccl bcnu bcuc bgon bgun blcu blno blob bloc blog blon bloo blou blub bnoc bobb bobo bobu boco bocu bogg bogo bolg boll boln bolo bolu bonc bong bonn bono bonu boob booc boog bool boon boul boun bubb bubo bubu bucc buco bucu bugg bugo bulb bulg bull bulu bunb bung bunn buno bunu buol buon c-bo cbbc cbcc cbcl cbcn cbcu cbgb cblb cblc cbln cbol ccbc ccbn cccb cccc cccl cccu ccgc cclc cclg ccnb ccnc ccnu ccob ccoc ccuc cgcc cgcg clob clog clon cloo clou club clun cnbc cnbl cnco cobb cobo cobu coco cocu cogo col- colb coll coln colo colu con- conc cong conn cono coob cool coon coub coul coun cub- cubb cucc cucn culb culc cull culo cuno cuon gbbo gbon gc-c gcbc gccc gclc ggcl gggg glbc glcc glob glog glou glub glug glun gncc gngc gnoo gobl gobo gogo goll golo golu gon- gong gonn gono gonu goog gool goon gou- goug goul goun gubb gubu gugb gugg gugu gulb gull gulo gulu gung gunn lbcc lbug lcbc lccc lgbu llcc llgc lllc llll lloc lloo lob- lobb lobo locc locn loco locu log- logb logo loll lolo long lono loob looc lool loon loul loun louu lugg lugo lugu lull lulu lung lunn luno nbbc nbbo nbcc nbco ncbc nccc nccn nccu nclc ncln ncnc ncoc ngol ngon ngou nguu nlcc nlgn nngn nnnn nobc nobo nobu nocl noco nogg nogo noll nolo non- nong nonn nono nonu noo- noob nool noon nooo noul noun nubc nubl nucu null nunc nung nunn nuno nuoc nuon obbo oblu obol obon ocbc occc occn oclc ocon ocul ogb ognl ogog ogon ogou ogun olbo olcc olgc ollo olog olon onc- onco ongo ongu onno onon oolo oooo oucc oulu oun- oung ouu- ubbo ublo uboc ubon ucbc ucon ugcc ugcg uggo ugol uguu ulbc ulcc ulco ullo ulno ulo- uloc ulog ulul uncc uncg uncl unco ungo ungu unno unon uocc uolc uulu uuno uuoc uuuu