-hou bbbb bbch bblb bcbc bccc bccl bcnu bcuc bhcc bhuu blcu blno blob bloc blon bloo blou blub bnoc bobb bobo bobu boch boco bocu bohl bohn boho bohu boll boln bolo bolu bonc bonn bono bonu boob booc booh bool boon bouh boul boun bubb bubo bubu bucc buch buco bucu buhl buho bulb bull bulu bunb bunn buno bunu buol buon c-bo cbbc cbcc cbcl cbcn cbcu cbhl cblb cblc cbln cbol ccbc ccbn cccb cccc cccl cccu cchl cclc ccnb ccnc ccnu ccob ccoc ccuc chch chlc chln chnb chnc chnl chno choc choh chol chon choo chou chub chul chun clob clon cloo clou club cluh clun cnbc cnbl cnco cnoh cobb cobh cobo cobu coch coco cocu cohn coho col- colb coll coln colo colu con- conc conn cono coob cooh cool coon coub coul coun cub- cubb cucc cucn culb culc cull culo cuno cuon hboc hcbc hccb hccc hcch hhcl hhhh hlul hobo hoch hocn hohl hohn hoho hol- holb holc holh holl holn holo holu hono honu hool hoon hubb hubl hubo huch hucu huhn huhu hulc hull hulu hunc hunh huon huub lbcc lcbc lccc lchc lhhh lhun llcc lllc llll lloc lloo lob- lobb lobh lobo locc loch locn loco locu lohn loho lohu loll lolo lono loob looc lool loon louh loul loun louu luch luhu lull lulu lunn luno luoh nbbc nbbo nbcc nbco ncbc nccc nccn nccu nchc nclc ncln ncnc ncoc nhcc nhhl nhnn nhon nlcc nnnn nobc nobo nobu noch nocl noco nohn noho noll nolo non- nonn nono nonu noo- noob nool noon nooo nouh noul noun nubc nubl nuch nucu null nunc nunn nuno nuoc nuon obbo oblu obol obon obuh ocbc occc occn oclc ocon ocul ohcc ohho ohno ohob ohoh olbo olcc ollo olon onc- onco onno onon ooho oolo oooh oooo oucc ouch oulu oun- ouu- ubbo ublo uboc ubon ucbc ucho ucon uhcl uhno uhoh uhuh ulbc ulcc ulch ulco ullo ulno ulo- uloc ulul uncc unch uncl unco unno unon uocc uolc uulu uuno uuoc uuuu