-ous iiii iiio iiis iioi iioo iiop iios iisi iisp iisu ilio ilis ill- illi illo illp ills iloo ilos ilus ioii ioio iolo iooi iooo ioos iopl iops ioso iosu ious ipil iplo ipop ipos ippo ipsi ipso ipsp ipss ipus isil isis isls iso- isol isop isos isps issi isso issp isss issu isup isus iuiu iupp iuss liii liis lili lill lilo lils lilu lio- lios lip- lipi lipl lipo lipp lips lipu lisi liso lisp liss lisu lius llll lloo llps lois loiu loli loll lolo lols lool loop loos lopi lopp lops lopu losi loso losp loss loui loul loup lous louu lppl lpss lspl lsso lssp luis luli lull lulu lupi lupo lupu lusi luso luss luup oiii oils oios oisu olio olis olli ollo olos olsi oolo oooo ooos oops oosi oous opii opio opis opls opo- opos oppi oppo opps opsi opsu opus osii osip osis osli oslo osoi osoo osos ossi osso ossu osul ouii ouis ouls oulu ouu- piip pil- pili pill pilo pils pilu pipi pipo pipp pips pisi piso piss pisu pius plio plip plis ploo plop plos plou plpp plsi plss plup plus poil poio pois poli poll polo pols polu pool poop poos pop- popi popo popp pops posi poso poss poui poul poup pous ppli pplo ppos pppo pppp ppps ppss psil psip psis psoi psol psos psou pspi pspp psps psso puis puiu puli pull pulo pulp puls pulu pupi pupl pups pupu pusi puss s-ii s-os sil- sili sill silo sils silu siol siop sios siou sipi sipo sipp sips sisi siss sisu siui sius sl-i slip sllp sloo slop slos slpi slpp slps slsu slup soil sois soli soll solo solp sols sool soop soos sopi sopo sopp sops sopu sosi soso soss soul soup sous spio spip spis splo splp spls spoo spop spos spps spso spsp spss spui spus ssis sslp ssop sspl sspo ssps sssi ssss suio suis sul- suli sull sulo sulp sulu suos sup- supo supp sups sus- susi suso susp suss susu suus uipi ulli ullo ulo- ulos ulul ulus upis uplo upos uppp uppu upsi upup usip usis uslp uslu usoi usos uspo uspp usps usss ussu usui usul usus uulu uusi uuuu