bbbb bbfn bftt bobb bobo boff bokn boko bonk bonn bono bont boob boof book boon boot botb botn boto bott btob bttb f--k ffff fftf fntb fobt fofo fono font foof fook foon foot foto fott kbbb kbbf kbbk kbbo kbbt kbfb kbff kbfk kbfo kbft kbkb kbkf kbkk kbko kbnn kbno kbob kbok kbon kboo kbot kbtb kbtf kbtk kbtn kbto kbtt kfbk kfbn kfbt kffb kfff kffk kffn kfkb kfnf kfnk kfnn kfno kfok kfon kfoo kftk kftt kkbb kkbn kkbo kkbt kkfn kkft kkkk kknb kknn kkno kknt kkob kkon kkoo kkot kktk knbb knbn knbt knfo knft knkk knkt knnb knnk knob knok knon knot kntk kntn knto kobb kobk kobn kobo koff kofk kofo koft kokb kokf kokk kokn koko konk kono kont koob kook koon kooo koot kotb kotk kotn koto kott ktbb ktbn ktbt ktfb ktfn ktfo ktkb ktkk ktkn ktko ktkt ktnf ktnk ktnn ktno ktnt ktob ktok kton ktoo ktot kttf kttk kttn ktto kttt nbbo nfff nfon nfto nknt nkok nnnn nnot nntn nobo noko non- nonn nono nont noo- noob nook noon nooo noot not- noto nott ntof ntto obbo obkb obok obon obot off- offo ofno okko okno okok okon okot okto onno onon ont- onto ooff oont oooo ootb oto- otof otok oton otoo otto tbnf tfot tkof tkon tobo tobt toff tofo toft toko tonb tonk tonn tono toof took toon toot toto tott ttbb ttff ttfn tton tttt