dddd ddps ddss dfds didi dids didu dif- diff difs diii diis din- dini dinn dins dinu dipn dipp dips dipu dis- disd disi disp diss dius dnis dnus dpin dpni dpsd dpsu dsdp dsif dsip dspf dsps dssi dssn dssp dudd duds dudu duff dufu duid duif duin duis dunn duns dusi ffff ffii ffps ffss ffun fidf fids fiff fifi fiii find fini finn finp fins fipp fips fisd fisi fiss fisu fndd fndn fnsp fnuf fpin fsfi fspf fssf fssp fudd fudi fuff fufu fuid fund funf funs fusd fusi fuss fusu idfp idid idin idis idps idsf idss idun idus ifid ifis ifni ifns ifps ifsp iiii iiis iipf iisd iisi iisp iisu ind- indi inds indu infi infp infs inid inis inni inns innu inp- inpi inpp insp inss insu inui inun inup inus ipdi ipid ipin ippf ipsi ipsp ipss ipus isdn isds isfp isin isis ispf isps issf issi issp isss issu isup isus iuds iuiu iupp iusd iuss n-ii n-up ndfi ndnp ndpd ndps ndsf ndsi ndss nfff nfip nfps nfsu nidd nidi nids niff niip niiu nind nini nins nips nisd nisi nisp niss nisu nnnn nnpi nnss npif npin nppd npss nsdf nsds nsfs nsin nsis nspi nsps nssf nssp nsss nudd nudi nuff nuin nunn nuns nups nusi nuss nusu pdfs pdns pdpn pdsd pdss pfff pfis pfps pfui pids piff pifs piip pind pini pinn pinp pins pinu pipi pipp pips pisd pisi piss pisu pius pnin pnpp pnup ppds ppid ppif pppd pppn pppp ppps ppsf ppss psdi psdp psds psfs psid psip psis psni pspi pspp psps puds pudu puff puid puin puis puiu pund puns punu pupi pups pupu pusd pusi puss s-ii sdds sdif sdps sdsf sdss sdsu sfpd sfss sfsu sidd sidi sids siff sifu sind sini sinn sinp sins sinu sipi sipp sips sisd sisi siss sisu siui sius snfu snid snip snns snpp snsd snus spdf spdp spfs spin spip spis spns sppd sppf spps spsd spsp spss spud spui spun spus ssdd ssdf ssdp ssfp ssid ssin ssis ssns sspf ssps sssf sssi ssss sudd sudi suds suf- suff sufi sufs sufu suid suin suis sun- sund suni sunn suns sunu sup- supp sups sus- susd susi susp suss susu suus uddi udds udid udin udpd udsd udun ufip uipi uisd undi unds unfd unfp uni- unif unii unin unis unni unns unps uns- unus updf upin upis upnp uppp uppu upsi upup usdf usdp usds usfi usfs usif usin usip usis usnu uspp usps ussf usss ussu usui usun usus uuni uusi uuuu