iiii iiio iiis iiit iioi iioo iiop iios iisi iisp iist iitt ilio ilis ilit ill- illi illo illp ills illt iloo ilos ilot ilts ioii ioio ioit iolo iooi iooo ioos iopl iops ioso ioto ipil iplo ipop ipos ippo ipsi ipso ipsp ipss ipto ipts isil isis isit isls iso- isol isop isos isps issi isso issp isss isti isto istp ists itil itis itll itoi itol itoo itos itsi itso itsp itto liii liis lili lill lilo lils lilt lio- lios lip- lipi lipl lipo lipp lips lisi liso lisp liss list liti litl lito lits litt llll lloo llps lois loit loli loll lolo lols lool loop loos loot lopi lopp lops losi loso losp loss lost loti lotl loto lots lott lppl lpss lspl lsso lssp lsts ltps ltsi ltsp oiii oils oios oist oiti olio olis olit olli ollo olos olot olsi olst oolo oooo ooos oops oosi oost ootp oots opii opio opis opit opls opo- opos oppi oppo opps opsi opti opto opts osii osip osis osli oslo osoi osoo osos ossi osso osti osts otis otit oto- otoo otos otpp otso otti otto otts piip pil- pili pill pilo pils pilt piot pipi pipo pipp pips pisi piso piss pist piti pito pits pitt plio plip plis plit ploo plop plos plot plpp plsi plss pltt poil poio pois poli poll polo pols polt pool poop poos poot pop- popi popo popp pops popt posi poso poss post poti poto pots pott ppli pplo ppos pppo pppp ppps ppss ppts pptt psil psip psis psoi psol psos pspi pspp psps psso psst psts ptol ptop s-ii s-os siit sil- sili sill silo sils silt siol siop sios siot sipi sipo sipp sips sipt sisi siss sist sit- siti sito sits sitt sl-i slip slit sllp sloo slop slos slot slpi slpp slps slst slts soil sois soit soli soll solo solp sols solt sool soop soos soot sopi sopo sopp sops sosi soso soss sost sotl soto sotp sots spio spip spis spit splo splp spls spoo spop spos spot spps spso spsp spss spst spto spts ssis ssit sslp sslt ssop ssot sspl sspo ssps sspt sssi ssss sstl sstp ssts stil stio stip stis stit stlo stlt stol stoo stop stos stot stpp stps stsi stss tiit till tilo tils tilt tiop tios tip- tipi tipo tipp tips tipt tisi tiso tiss tist titi tito titp tits titt tlli tlos toil tois toit tol- toli toll tolo tolt tool toos toot top- topi topo topp tops topt tosi toso toss tost toti toto tots tott tpls tpol tppp tptp tsis tsoi tsol tsop tsos tspo tsps tspt tssi tsst tsts ttop ttss tttt