iiii iiis iiit iisi iisp iist iitt ilin ilis ilit ill- illi illp ills illt ilni ilts inis init inni inns inp- inpi inpp inpt insp inss inst inti intl intn intp ints ipil ipin ipsi ipsp ipss ipts isil isin isis isit isls isnt isps issi issp isss isti istp ists itil itin itis itll itsi itsp liii liin liis lili lill lils lilt linn lins lint lip- lipi lipl lipp lips lisi lisp liss list liti litl lits litt llll llps lnts lpns lppl lpss lspl lssp lsts ltns ltnt ltps ltsi ltsp n-ii niip niit nili nill nilp nils nilt nini ninl nins nips nipt nisi nisl nisp niss nist niti nits nlls nlsp nnit nnls nnnn nnpi nnsl nnss nntn npin nppl npsl npss nptn nsin nsis nslp nsls nspi nsps nssp nsss nstl nstp nsts ntis ntss piip pil- pili pill pils pilt pini pinn pinp pins pint pipi pipp pips pisi piss pist piti pits pitt plin plip plis plit plnt plpp plsi plss pltt pnin pnln pnnl pnpp pntl ppli pppn pppp ppps ppss pptn ppts pptt psil psip psis psni pspi pspp psps psst psts s-ii siit sil- sili sill sils silt sini sinn sinp sins sint sipi sipp sips sipt sisi siss sist sit- siti sitn sits sitt sl-i slip slit slln sllp slpi slpp slps slst slts snip snit snns snpp spin spip spis spit splp spls spns spps spsp spss spst spts ssin ssis ssit sslp sslt ssns sspl ssps sspt sssi ssss sstl sstp ssts stil stip stis stit stln stlt stnn stns stpp stps stsi stss tiit till tiln tils tilt tini tinn tins tint tip- tipi tipp tips tipt tisi tiss tist titi titp tits titt tlli tnsp tnts tpls tppp tptp tsin tsis tspn tsps tspt tssi tsst tsts ttss tttt