iiii iiis iisi iisp ilis ill- illi illp ills illy ipil ippy ipsi ipsp ipss isil isis isls isly isps ispy issi issp isss issy isyl isys liii liis lili lill lils lily lip- lipi lipl lipp lips lipy lisi lisp liss lisy liyl llll llps lppl lpss lpys lspl lssp lyly lys- lysi lysl lyss piip pil- pili pill pils pily pipi pipp pips pipy pisi piss pisy piys plip plis plpp plsi plss ppli pppp ppps ppss psil psip psis pspi pspp psps psy- psys pyl- pyli pyll pypy pyss s-ii sil- sili sill sils sipi sipp sips sipy sisi siss sisy siyi sl-i slip sllp slpi slpp slps slyp slys spip spis splp spls spps spsp spss spy- spys ssis sslp sspl ssps sssi ssss syis syl- syli syll syls syss yili yill yips yiss ylli ylls ypsi ysii yspi yyyy