perl perp perr pfaa pfff pffr pfkl pfkp pfli pfra piaf piai pial piea piel piep pier pifa piff piia piip pika pike piki pikk pil- pila pile pili pilk pill pipa pipe pipi pipp pira pire piri pirk pirl pirr pkia pklr plaa plaf plai plak plap plar ple- plea plee plei plek plfa plff plie plif plik plip plkk plpa plpp plra plri ppal ppap ppar pper ppfa ppie ppif pple ppli pppa pppp pprf prae prai prar pre- pree pref prek prel prep pri- pria prie prif prii prle prlr prri raaf raak raef rael raep raer rafa rafe raff rafi raia raie raif raii raik rail raip rair raka rake raki rakk rala rale ralf rall rapa rape rapi rapl rapp rara rare rarf rari rark rea- reae reaf reak real reap rear reef reek reel reep refe reff refi refl refr reia reif reii reik reil reir reka reke reki rela rele rell relp repe repi repl repp repr rera rere reri rfae rfef rffl riaa riai riak rial rief riek riel riep rier rifa rife riff riia riif rika rike riki rikk rila rile rill rilp ripa ripe ripi ripl ripp ripr rire riri rkkf rlee rlef rlif rpii rrif rrle rrrr