ffff ffii ffps ffrr ffss fftf fiff fifi fift fiii fiil fili fill fils fipp fips firs fisi fiss fist fisu fiti fits fitt flii flip flis flit flts fluf flur flus fprf fril frip fris frit frps frst fsfi fspf fssf fssp ft-l ftii ftps ftrs ftsr fuff fufu fuil fuir fuit fuli full fuls fulu fur- furi furl furr furs furt fusi fuss fust fusu futi futs futu ifil ifis ifit ifps ifrf ifri ifsp iiii iiis iiit iipf iirs iisi iisp iisr iist iisu iitr iitt ilir ilis ilit ill- illi illp ills illt ilpr ilts ilus ilut ipil ippf ippr ipri ipsi ipsp ipss ipts ipur ipus iput irfu iri- iril irip iris irps irri irrs irsf irsp irtf irti irtp irts irul irus isfp isil isis isit isls ispf ispr isps isri isrp issf issi issp issr isss issu isti istp istr ists isup isus itif itil itis itll itrf itri itrs itsf itsi itsp itsu ittf itup itur iuiu iupp iuss iust lftp lfts liff lifl lift liii liir liis lili lill lils lilt lilu lip- lipi lipl lipp lips lipu liri lirl lirp lirr lirs lirt liru lisi lisp liss list lisu liti litl litr lits litt litu liuf lius liut llll llps lpfp lpft lppl lprp lpss lrif lrps lrpu lrrr lrst lrts ls-r lspl lspr lssp lssr lsts ltps ltrs ltsi ltsp ltsr lttr luff luft lufu luif luis luit luli lull lulu lupi lupu luri lurs lurt lusi luss lust luti luts luup pfff pffr pfft pfis pfit pfli pfps pfui piff pifs piip pil- pili pill pils pilt pilu pipi pipp pips piri pirl pirr pirs piru pisi piss pist pisu pitf piti pitr pits pitt pitu pius plff plif plip plis plit plpp plri plsi plss pltf pltt plup plur plus ppif ppli pppp ppps pprf ppru ppsf ppss ppts pptt ppur prfs pri- prif prii pris prlr prls prps prri prrs prsi prsl prss prti prtp prtr pruf prus prut pruu psfs psil psip psis pspi pspp pspr psps psrp psst psts pstu ptrf ptui puff puft puir puis puit puiu puli pull pulp puls pult pulu pupi pupl pups pupu pur- puri purl purp purr purs puru pusi puss pust put- puti puts putt putu rffl riff rifs rift rifu riif riis rill rilp rilu ripi ripl ripp ripr rips ript riri rirs risi risp riss rist risu riti ritl rits ritt ritu rius rlif rlls rpii rpls rpps rpts rrif rrrr rrsp rsis rslp rsps rssl rstp rsts rstu rtls rtlt rtps rtss rttp rtts ruff ruft ruif ruis ruit rull rupp rupt ruri rurp rurs ruru rusi russ rust rusu ruti rutl ruts rutt rutu s-ii sfls sfss sfsu sftp sfts siff sifl sifr sift sifu siit sil- silf sili sill sils silt silu sipi sipp sips sipt sirf siri sirp sirr sirs sirt siru sisi siss sist sisu sit- siti sits sitt situ siui sius siut sl-i slft slip slir slit sllp slpi slpp slps slrp slrs slst slsu slts slup slur slut spfs spip spir spis spit splp splr spls sppf spps spri sprs spsp spss spst sptr spts spui spur spus sput srfi sris srps srpt srsp srtp srtr ssfl ssfp ssis ssit sslp sslt sspf sspl ssps sspt ssri ssrl ssrs sssf sssi ssss sstl sstp ssts stfu stif stil stip stir stis stit stlt stpf stpp stps stri strs stru stsf stsi stss sttr stuf stul stup stur stus stut suf- suff sufi sufr sufs sufu suir suis suit sul- sulf suli sull sulp sult sulu sup- supp supr sups supt sur- surf suri surp surr surs surt suru sus- susi susp suss sust susu suti sutu suus tfpt tfrs tfsi tfss tftp tiff tift tiit tiiu till tilr tils tilt tip- tipi tipp tips tipt tipu tiri tirl tirr tirs tiru tisi tiss tist titi titp tits titt titu tlli tlrs tpir tpls tppp tppr tprs tptp tptr tput trfr tri- trif tril trip tris trit trpp trps trsi trst trtr trus trut truu tsfl tsis tsps tspt tssf tssi tssr tsst tsts tsui tsup ttff ttss tttt ttul tuff tufi tuft tufu tuil tuis tuit tuiu tuli tull tulp tulu tupi tups tupu turf turi turp turr turs turt turu tusi tuss tust tuti tutl tuts tutt tutu u-rp ufip uftp uipi uirr uist uits ulft ulli ullr ulti ults ultt ulul ulus upis uppp uppu upri upsi uptl upup urff urfi urft urif uris uriu urls urri ursi urss ursu urts urup urur urus urut usfi usfl usfs usif usip usis uslp uslu uspp usps ussf ussr usss usst ussu usti ustp usts usui usul usus util utis utri utsl utti uttu uulu uuri uusi uutf uuuu