iiii iiio iiis iioi iioo iiop iios iisi iisp ilio ilis ill- illi illo illp ills illy iloo ilos ioii ioio iolo iooi iooo ioos iopl iops ioso ipil iplo ipop ipos ippo ippy ipsi ipso ipsp ipss isil isis isls isly iso- isol isop isos isps ispy issi isso issp isss issy isyl isys iyos liii liis lili lill lilo lils lily lio- lios lip- lipi lipl lipo lipp lips lipy lisi liso lisp liss lisy liyl llll lloo llps lois loli loll lolo lols loly lool loop loos lopi lopp lops losi loso losp loss losy loys lppl lpss lpys lspl lsso lssp lyly lyo- lys- lysi lysl lyso lyss oiii oils oily oios oiyl olio olis olli ollo olly olos olsi oolo oooo ooos oops oosi opii opio opis opls opo- opos oppi oppo opps oppy opsi opsy osii osip osis osli oslo osoi osoo osos ossi osso ossy osyp oyls oyly oyss piip pil- pili pill pilo pils pily pipi pipo pipp pips pipy pisi piso piss pisy piyo piys plio plip plis ploo plop plos ploy plpp plsi plss poil poio pois poli poll polo pols poly pool poop poos pop- popi popo popp pops popy posi poso poss posy poyo poys ppli pplo ppos pppo pppp ppps ppss psil psip psis psoi psol psos pspi pspp psps psso psy- psys pyl- pyli pyll pyo- pyos pypy pyss s-ii s-os sil- sili sill silo sils siol siop sios sipi sipo sipp sips sipy sisi siss sisy siyi sl-i slip sllp sloo slop slos sloy slpi slpp slps slyp slys soil sois soli soll solo solp sols soly sool soop soos sooy sopi sopo sopp sops sopy sosi soso soss soyo soys spio spip spis splo splp spls spoo spop spos spoy spps spso spsp spss spy- spys ssis sslp ssop sspl sspo ssps sssi ssss syis syl- syli syll syls sypo syso syss yili yill yips yiss ylli ylls yoli yoll yolo yolp yoly yool yoop yopo yopy yosi yoso yoyo ypsi ysii ysop yspi yyyy