f--k ffff flok floo flop fofo folk foll folo foof fook fool fopp hhhh hhof hkpo hoff hohl hoho hoko hol- holh holk holl holo holp hoof hook hool hoop hopf hopo hopp k-lo kfff kffk kfhl kflf kfll kflo kflp kfok kfoo khhk khhl khho khkk khll khlo khok khol khop kkhh kkhk kkkk kklf kklh kkll kklo kkoh kkol kkoo kkpk kkpl klff klfh klkk klkl klko kllk kllp kloh klok klol kloo klop klpf koff kofh kofk kofo kofp kohh kohl koho kokf kokh kokk koko kokp kolf kolk koll kolo kook kool kooo koop kopf koph kopp kpfk kphf kphl kphp kpkk kpkl kplk kplo kpof kpok kpol kpoo kpop kppk kppl kppo kppp lhfp lhhh llll lloo loff loho lokk loko loll lolo loof look lool loop lopp lpfp lppl off- offh offo ohho ohoh ohok okko oklo okok okol okpo ollo olof olph ooff ooho oolo oooh oooo opo- oppo pfff pfkl pfkp phlo phoh phoo plff plkk ploh plok ploo plop plpp poff pohl poko polk poll polo poof pooh pook pool poop pop- popo popp pplo pppo pppp