ffff ffii fiff fifi fifo fiii fiil fili fill filn filo fini finn fino finp fion fipp flii flin flip flon floo flop fofo foil foin foli foll folo fono foof fool foon fopp fpin i-no ifil ifni ifno ifpo iiii iiio iino iioi iioo iiop iipf ilin ilio ill- illi illo illp ilni ilno iloo infi infl info infp inni inno ino- inoi inol inon inp- inpi inpp ioii ioio iolo ioni ionn iono ioof iooi iooo iopl ipil ipin iplo ipop ippf ippo liff lifl lifo liii liin lili lill lilo linn lino lio- lion lip- lipi lipl lipo lipp llll lloo loff lofi lofn loif loin loli loll lolo loni lono loof lool loon loop lopi lopp lpfp lppl n-ii nfff nfip nfon niff niip nili nill nilo nilp nini ninl nino nion nioo nnnn nnpi nofi noif noil noin noio nolf noli noll nolo nolp non- noni nonn nono noo- nool noon nooo noop npif npin nppl off- offo ofno oiii oion olin olio olli ollo olof olon onil onlf onni onno onon ooff oolo oooo opii opin opio opo- opon oppi oppo pfff pfli piff piip pil- pili pill pilo pini pinn pino pinp pion pipi pipo pipp plff plif plin plio plip plon ploo plop plpp pnin pnln pnnl pnon pnpo pnpp poff pofi poil poin poio poli poll polo poni pono ponp poof pool poon poop pop- popi popo popp ppif ppli pplo pppn pppo pppp