i-no iiii iiio iiis iino iioi iioo iiop iios iisi iisp inis inni inno inns inny ino- inoi inon inos inox inp- inpi inpp inso insp inss inxs inyo ioii ioio ioni ionn iono ions iooi iooo ioos iops ioso ipin ipix ipop ipos ippo ippy ipsi ipso ipsp ipss isin isis isno iso- ison isop isos isps ispy issi isso issp isss issy isys ixos ixxi iynx iyos n-ii niip nini nino nins nion nioo nios nips nisi niso nisp niss nixi nixy niyi nnnn nnos nnpi nnss noin noio nois noix non- noni nonn nono nons nonx noo- noon nooo noop noos nops nos- noss nosy noyo noys npin npss npsy nsin nsis nsos nspi nsps nsso nssp nsss nyny nyon nyss oiii oins oion oios onis onix onni onno onon onos onoy onso onys onyx oons oooo ooos oops oosi opii opin opio opis opo- opon opos oppi oppo opps oppy opsi opsy osii osin osip osis osno osny osoi osoo osos ossi osso ossy osyp oxi- oxis oxo- oxon oxos oxox oxsi oxxo oxy- oxyn oyns oyon oyss piip pini pinn pino pinp pins piny pion pipi pipo pipp pips pipy pisi piso piss pisy pixo pixx pixy piyo piys pnin pnon pnpo pnpp pnyx poin poio pois poix poni pono ponp pons pony poon poop poos pop- popi popo popp pops popy posi posn poso poss posy poxy poyn poyo poys ppos pppn pppo pppp ppps ppss psip psis psni psoi pson psos pspi pspp psps psso psy- psys pyin pyn- pyo- pyon pyos pypy pyss s-ii s-os sini sinn sino sinp sins siny sion siop sios siox sipi sipo sipp sips sipy sisi siss sisy sixo sixx siyi snip snns snoo snop snos snpo snpp snsy snys soin sois son- soni sono sons sony soon soop soos sooy sopi sopo sopp sops sopy sosi soso soss soxs soyo soys spin spio spip spis spix spns spon spoo spop spos spox spoy spps spso spsp spss spy- spys ssin ssis ssns ssop sspo ssps sspx sssi ssss syis syn- syns syny syon sypo syso syss xiii xion xisi xixi xois xoxo xoyo xpin xsin xson xxii xxix xxxi xxxo xxxx xxxy yins yips yiss ynon yoix yoni yono yons yoon yoop yopo yopy yosi yoso yoyn yoyo ypsi ysii ysnp yson ysop yspi yyyy