ffff ffii ffrr fftf fiff fifi fifo fift fiii fiil fili fill filn filo fini finn fino finp fint fion fior fipp firn fiti fitt flii flin flip flit flon floo flop flor flot fofo foil foin foli foll folo folr folt fono font foof fool foon foot fopp for- fori forl forn foro forr fort foti foto fotp fott fpin fprf fril frin frio frip frit frol fron frop frot ft-l ftii ftop i-no ifil ifit ifni ifno ifnr ifor ifpo ifrf ifri iftn ifto iiii iiio iiit iino iioi iioo iiop iipf iitr iitt ilin ilio ilir ilit ill- illi illo illp illt ilni ilno iloo ilot ilpr infi infl info infp init inni inno innr ino- inoi inol inon inor inot inp- inpi inpp inpt inri inro inti intl intn into intp intr ioii ioio ioit iolo ioni ionn iono ioof iooi iooo iopl iori iotf ioto ipil ipin iplo ipop ippf ippo ippr ipri ipto iri- iril irin irio irip iron irop irri irtf irti irtp itif itil itin itll itno itof itoi itol iton itoo itor itrf itri ittf itto lftp liff lifl lifo lift liii liin liir lili lill lilo lilt linn lino lint lio- lion lior lip- lipi lipl lipo lipp liri lirl lirn liro lirp lirr lirt liti litl lito litr litt llll lloo loff lofi lofn loft loif loin loir loit loli loll lolo loni lono lonr lont loof lool loon loop loor loot lopi lopp lori lorn loro loti lotl loto lotr lott lpfp lpft lppl lprp lrif lroi lron lrrr ltnt lttr n-ii nfff nfip nfon nfto niff nift niip niir niit nili nill nilo nilp nilt nini ninl nino nion nioo nipr nipt niro nirt nitf niti nito nitr nlrp nnit nnnn nnot nnpi nnpr nntn nofi noif noil noin noio noir noit nolf noli noll nolo nolp nolt non- noni nonn nono nont noo- nool noon nooo noop noor noot nor- norf nori norn noro norr nort not- noti noto nott npif npin nppl npri nprt nptn nron nrpn nrrl nrtl ntfl ntfp ntof ntop ntrl ntto nttr off- offo offr ofit ofno ofor oftp oiii oint oion oirt oiti olin olio olit olli ollo olof olon olor olot onil onir onit onlf onni onno onon onor onpt ont- onti onto ooff oolo oont oooo oort ootp opii opin opio opit opo- opon opor oppi oppo opti optn opto orff orfi ori- orif oril orin orio orit orlo orni orno oro- orof oron oror orot orpi orri orro orto otfp otif otin otit oto- otof oton otoo otor otpp otro otti otto pfff pffr pfft pfit pfli piff piip pil- pili pill pilo pilt pini pinn pino pinp pint pion piot pipi pipo pipp piri pirl pirn piro pirr pitf piti pito pitr pitt plff plif plin plio plip plit plnt plon ploo plop plot plpp plri pltf pltt pnin pnln pnnl pnon pnot pnpo pnpp pnro pntl pntr poff pofi poil poin poio poli poll polo polt poni pono ponp pont poof pool poon poop poor poot pop- popi popo popp popt pori porn poro porr port potf poti poto pott ppif ppli pplo pppn pppo pppp pprf pptn pptt pri- prif prii prin prlr prnp pro- prof prol pron proo prop prot prri prti prtp prtr ptol ptop ptrf rffl riff rift riif riin rill rilo rilp rinf rinn rino riol rion riot ripi ripl ripp ripr ript riri riti ritl rito ritt rlif rlin rnin rnli rnnt rnot rntp roff rofl rofo roif roil roin roio roir roit rolf roll rolo rolp rolt roni rono ront roof rooi rool roon roop roor root ropo rori roro rort roti rotl rotn roto rotr rott rpii rpof rpon rppn rptn rrif rrrr rtlt rttp tfin tfnp tfot tfpt tftp tiff tifo tift tiit till tiln tilo tilr tilt tini tinn tino tint tion tiop tip- tipi tipo tipp tipt tiri tirl tiro tirr titi tito titp titt tlli tlon tnfl toff tofi tofo toft toil toit tol- toli toll tolo tolt toni tonn tono toof tool toon toor toot top- topf topi topo topp topt torf tori torn toro torp torr tort toti toto totr tott tpir tpol tpon tppp tppr tptp tptr trfr tri- trif tril trin trio trip trit trno troi tron troo trop trot trpn trpp trtr ttff ttfn tton ttop tttt