bbbb bbdd bbdo bbfc bblb bcbc bccc bccl bcfc bcof bdbc bddc bffl bldc blfc blkb blkd blob bloc blod blok bloo bobb bobo bock boco bodb bodo bofd boff boko bold bolk boll bolo boob booc bood boof book bool c-bo c-cd cbbc cbcc cbcl cbdb cbdc cbdo cbfb cbfc cbkl cbko cblb cblc cbol ccbc cccb cccc cccf cccl ccdc ccdf ccfc ccfd ccff ccfl cclc ccob ccoc ccod cdbf cddb cddl cfbc cfcb cfcf cfcl cfco cffb ckbc ckck ckcl ckco ckdo cklf ckob ckoc ckoo clcd cldc clob clod clof clok cloo cobb cobo cock coco codd codl cofc coff cok- coko col- colb cold colk coll colo coob cood coof cook cool d-bo dbcc dbfc dbfo dcbc dccb dccc dccl dcdb dcfc dddd ddlc ddoc dfcc dfco dkdc dlbd dlco dobb dobl dock doco dod- dodd dodo doff doko dold dolf dolk doll dolo doob dood doof dook dool f--k fccf fdoc ffcc ffff flcl flob floc flod flok floo fock foco fofo folc fold folk foll folo food foof fook fool k-lo kbbb kbbc kbbd kbbf kbbk kbbl kbbo kbcb kbck kbcl kbco kbdb kbdf kbdl kbdo kbfb kbfc kbff kbfk kbfl kbfo kbkb kbkf kbkk kbkl kbko kblb kbld kblf kbll kblo kbob kboc kbod kbok kboo kcbc kcbd kcbf kcbk kcbl kccb kccc kccd kcck kccl kcdc kcdd kcfb kcfc kcfd kcfl kcfo kckc kckf kckk kckl kcko kclc kclf kclk kcll kcob kcof kcol kdbb kdbl kdcc kdcd kdco kddb kddc kddd kddf kddk kddl kdfc kdfo kdkb kdkd kdkk kdko kdlb kdlc kdld kdlf kdll kdlo kdoc kdok kfbc kfbk kfcd kfcf kfco kffb kfff kffk kfkb kflb kflc kfld kflf kfll kflo kfok kfoo kkbb kkbd kkbl kkbo kkcb kkcd kkck kkcl kkco kkdc kkdd kkdl kkdo kkkk kklb kklc kkld kklf kkll kklo kkob kkol kkoo klbb klbc klbd klbf klbl klcb klcc klcd klck klcl kldc kldd klfc klfd klff klkc klkk klkl klko kllb kllc kllk klob kloc klok klol kloo kobb kobc kobk kobo kocb kocd kocf kock kodk kodl kodo kofc koff kofk kofo kokb kokc kokf kokk koko kolb kolc kold kolf kolk koll kolo koob kooc kook kool kooo lbcc lcbc lccc lcdd lcfc ldcf lfcc llcc lldb lldc lllc llll lloc llod lloo lob- lobb lobo locc lock loco loff lokk loko lold loll lolo loob looc lood loof look lool obbo obkb obok obol ocbc occc oclc odbo oddd odoo ofcl off- offc offo okko oklo okok okol olbo olcc oldb ollo olof ooff oold oolo oooo