iiii iiio iiis iiit iioi iioo iios iisi iist iitt ilio ilis ilit ill- illi illo ills illt iloo ilos ilot ilts ioii ioio ioit iolo iooi iooo ioos ioso ioto isil isis isit isls iso- isol isos issi isso isss isti isto ists itil itis itll itoi itol itoo itos itsi itso itto liii liis lili lill lilo lils lilt lio- lios lisi liso liss list liti litl lito lits litt llll lloo lois loit loli loll lolo lols lool loos loot losi loso loss lost loti lotl loto lots lott lsso lsts ltsi oiii oils oios oist oiti olio olis olit olli ollo olos olot olsi olst oolo oooo ooos oosi oost oots osii osis osli oslo osoi osoo osos ossi osso osti osts otis otit oto- otoo otos otso otti otto otts s-ii s-os siit sil- sili sill silo sils silt siol sios siot sisi siss sist sit- siti sito sits sitt sl-i slit sloo slos slot slst slts soil sois soit soli soll solo sols solt sool soos soot sosi soso soss sost sotl soto sots ssis ssit sslt ssot sssi ssss sstl ssts stil stio stis stit stlo stlt stol stoo stos stot stsi stss tiit till tilo tils tilt tios tisi tiso tiss tist titi tito tits titt tlli tlos toil tois toit tol- toli toll tolo tolt tool toos toot tosi toso toss tost toti toto tots tott tsis tsoi tsol tsos tssi tsst tsts ttss tttt