ffff ffii ffps ffss fiff fifi fiii fiil fili fill fils fipp fips fisi fiss flii flip flis flyi flys fsfi fspf fssf fssp fyfi fyli iffy ifil ifis ifps ifsp iiii iiis iipf iisi iisp ilis ill- illi illp ills illy ipil ippf ippy ipsi ipsp ipss isfp isil isis isls isly ispf isps ispy issf issi issp isss issy isyl isys liff lifl liii liis lili lill lils lily lip- lipi lipl lipp lips lipy lisi lisp liss lisy liyl llll llps lpfp lppl lpss lpys lspl lssp lyff lyfy lyif lyly lys- lysi lysl lyss lyyf pfff pfis pfli pfps piff pifs piip pil- pili pill pils pily pipi pipp pips pipy pisi piss pisy piys plff plif plip plis plpp plsi plss ppif ppli pppp ppps ppsf ppss psfs psil psip psis pspi pspp psps psy- psys pyl- pyli pyll pypy pyss s-ii sfls sfss siff sifl sify sil- silf sili sill sils sipi sipp sips sipy sisi siss sisy siyi sl-i slip sllp slpi slpp slps slyp slys spfs spip spis splp spls sppf spps spsp spss spy- spys ssfl ssfp ssis sslp sspf sspl ssps sssf sssi ssss syff syfy syis syl- syli syll syls syss yiff yili yill yips yiss ylli ylls ypfl ypsi ysii yspi yyff yyyy