ffff ffii ffps ffrr ffss fiff fifi fifo fiii fiil fili fill filn filo fils fini finn fino finp fins fion fior fios fipp fips firn firs fisi fiss flii flin flip flis flon floo flop flor flos fnrs fnsp fofo foil foin fois foli foll folo folr fols fono fons foof fool foon foos fopp fops for- fori forl forn foro forr fors fosi foso foss fpin fprf fril frin frio frip fris frns frol fron frop fros frps frso fsfi fsfo fsln fspf fssf fssp i-no ifil ifis ifni ifno ifnr ifns ifor ifpo ifps ifrf ifri ifso ifsp iiii iiio iiis iino iioi iioo iiop iios iipf iirs iisi iisp iisr ilin ilio ilir ilis ill- illi illo illp ills ilni ilno iloo ilos ilpr infi infl info infp infs inis inni inno innr inns ino- inoi inol inon inor inos inp- inpi inpp inri inro inrs inso insp inss ioii ioio iolo ioni ionn iono ions ioof iooi iooo ioos iopl iops iori iors ioso ipil ipin iplo ipop ipos ippf ippo ippr ipri ipsi ipso ipsp ipss iri- iril irin irio irip iris iron irop irps irri irrs irsf irsp isfp isil isin isis isls isno iso- isof isol ison isop isor isos ispf ispr isps isri isrp issf issi isso issp issr isss liff lifl lifo liii liin liir liis lili lill lilo lils linn lino lins lio- lion lior lios lip- lipi lipl lipo lipp lips liri lirl lirn liro lirp lirr lirs lisi liso lisp liss llll lloo llps lnfs lnso loff lofi lofn loif loin loir lois loli loll lolo lols loni lono lonr lons loof lool loon loop loor loos lopi lopp lops lori lorn loro lors losi loso losp loss lpfp lpns lppl lprp lpss lrif lroi lron lrps lrrr ls-r lsof lson lspl lspr lsso lssp lssr n-ii nfff nfip nfon nfps nfrs nfsr niff niip niir nili nill nilo nilp nils nini ninl nino nins nion nioo nios nipr nips niro nirs nisi nisl niso nisp niss nlls nlrp nlsp nnls nnnn nnos nnpi nnpr nnsl nnss nofi noif noil noin noio noir nois nolf noli noll nolo nolp nols non- noni nonn nono nons noo- nool noon nooo noop noor noos nops nor- norf nori norn noro norr nors nos- noss npif npin nppl npri npsl npss nron nrpn nrps nrrl nrsp nsfs nsin nsis nslp nslr nsls nsnr nsof nsos nspi nsps nsrl nssf nsso nssp nssr nsss off- offo offr offs ofno ofor oiii oils oins oion oios olfs olin olio olis olli ollo olof olon olor olos olsi onil onir onis onlf onni onno onon onor onos onso ooff oofs oolo oons oooo ooos oops oosi opii opin opio opis opls opo- opon opor opos oppi oppo opps opsi orff orfi orfs ori- orif oril orin orio oris orlo orni orno orns oro- orof oron oror oros orpi orps orri orro orrs orsi orso osii osin osip osis osli oslo osno osnr osoi osoo osor osos osro ossi osso pfff pffr pfis pfli pfps piff pifs piip pil- pili pill pilo pils pini pinn pino pinp pins pion pipi pipo pipp pips piri pirl pirn piro pirr pirs pisi piso piss plff plif plin plio plip plis plon ploo plop plos plpp plri plsi plss pnin pnln pnnl pnon pnpo pnpp pnro poff pofi poil poin poio pois poli poll polo pols poni pono ponp pons poof pool poon poop poor poos pop- popi popo popp pops pori porn poro porr pors posi posn poso poss ppif ppli pplo ppos pppn pppo pppp ppps pprf ppsf ppss prfs pri- prif prii prin pris prlr prls prnp pro- prof prol pron proo prop pros prps prri prrs prsi prsl prso prss psfs psil psip psis psni psnr psoi psol pson psos pspi pspp pspr psps psrp psso rffl riff rifs riif riin riis rill rilo rilp rinf rinn rino riol rion rios ripi ripl ripp ripr rips riri rirs risi riso risp riss rlif rlin rlls rnin rnli rnsp roff rofl rofo roif roil roin roio roir rois rolf roll rolo rolp roni rono rons roof rooi rool roon roop roor roos ropo rops rori roro rosi roso rosp ross rpii rpls rpof rpon rpos rppn rpps rrif rrrr rrsp rsis rslp rsnn rsno rsnr rsos rspo rsps rssl s-ii s-os sfio sfls sfor sfos sfro sfss siff sifl sifo sifr sil- silf sili sill silo sils sini sinn sino sinp sins siol sion siop sior sios sipi sipo sipp sips sirf siri siro sirp sirr sirs sisi siss sl-i slip slir slln sllp slon sloo slop slos slpi slpp slps slrn slrp slrs snip snir snlf snns snoo snop snor snos snpo snpp snrs sofi sofo soif soil soin soir sois solf soli soll soln solo solp solr sols son- soni sono sons soof sool soon soop soor soos sopi sopo sopp sops sori sorn soro sorr sors sosi soso soss spfs spin spio spip spir spis splo splp splr spls spns spon spoo spop spor spos sppf spps spri spro sprs spso spsp spss srfi sris srni srnn srno sros srps srsp ssfl ssfp ssin ssis sslp ssns ssop sspf sspl sspo ssps ssri ssrl ssrs sssf sssi ssss