iiii iiis iisi iisp ilin ilis ill- illi illp ills ilni inis inni inns inp- inpi inpp insp inss ipil ipin ipsi ipsp ipss isil isin isis isls isps issi issp isss liii liin liis lili lill lils linn lins lip- lipi lipl lipp lips lisi lisp liss llll llps lpns lppl lpss lspl lssp n-ii niip nili nill nilp nils nini ninl nins nips nisi nisl nisp niss nlls nlsp nnls nnnn nnpi nnsl nnss npin nppl npsl npss nsin nsis nslp nsls nspi nsps nssp nsss piip pil- pili pill pils pini pinn pinp pins pipi pipp pips pisi piss plin plip plis plpp plsi plss pnin pnln pnnl pnpp ppli pppn pppp ppps ppss psil psip psis psni pspi pspp psps s-ii sil- sili sill sils sini sinn sinp sins sipi sipp sips sisi siss sl-i slip slln sllp slpi slpp slps snip snns snpp spin spip spis splp spls spns spps spsp spss ssin ssis sslp ssns sspl ssps sssi ssss