iiii iiis iiit iisi iisp iist iitt ipsi ipsp ipss ipts isis isit isps issi issp isss isti istp ists itis itsi itsp piip pipi pipp pips pisi piss pist pisz piti pits pitt pitz pppp ppps ppss ppts pptt psip psis pspi pspp psps psst psts s-ii siit sipi sipp sips sipt sisi siss sist sit- siti sits sitt sitz sizz spip spis spit spps spsp spss spst spts ssis ssit ssps sspt sssi ssss sstp ssts stip stis stit stpp stps stsi stss szis szss tiit tip- tipi tipp tips tipt tisi tiss tist titi titp tits titt titz tizi tizz tppp tptp tsis tsps tspt tssi tsst tsts ttss tttt tzsp tzzt ziip zipp zips zisi zist ziti zits zizi zizz zsss ztst zzzs zzzz