ffff ffrr fftf flon floo flop flor flot fofo foll folo folr folt fono font foof fool foon foot fopp for- forl forn foro forr fort foto fotp fott fprf frol fron frop frot ft-l ftop lftp llll lloo loff lofn loft loll lolo lono lonr lont loof lool loon loop loor loot lopp lorn loro lotl loto lotr lott lpfp lpft lppl lprp lron lrrr ltnt lttr nfff nfon nfto nlrp nnnn nnot nnpr nntn nolf noll nolo nolp nolt non- nonn nono nont noo- nool noon nooo noop noor noot nor- norf norn noro norr nort not- noto nott nppl nprt nptn nron nrpn nrrl nrtl ntfl ntfp ntof ntop ntrl ntto nttr off- offo offr ofno ofor oftp ollo olof olon olor olot onlf onno onon onor onpt ont- onto ooff oolo oont oooo oort ootp opo- opon opor oppo optn opto orff orlo orno oro- orof oron oror orot orro orto otfp oto- otof oton otoo otor otpp otro otto pfff pffr pfft plff plnt plon ploo plop plot plpp pltf pltt pnln pnnl pnon pnot pnpo pnpp pnro pntl pntr poff poll polo polt pono ponp pont poof pool poon poop poor poot pop- popo popp popt porn poro porr port potf poto pott pplo pppn pppo pppp pprf pptn pptt prlr prnp pro- prof prol pron proo prop prot prtp prtr ptol ptop ptrf rffl rnnt rnot rntp roff rofl rofo rolf roll rolo rolp rolt rono ront roof rool roon roop roor root ropo roro rort rotl rotn roto rotr rott rpof rpon rppn rptn rrrr rtlt rttp tfnp tfot tfpt tftp tlon tnfl toff tofo toft tol- toll tolo tolt tonn tono toof tool toon toor toot top- topf topo topp topt torf torn toro torp torr tort toto totr tott tpol tpon tppp tppr tptp tptr trfr trno tron troo trop trot trpn trpp trtr ttff ttfn tton ttop tttt