llll lloo loll lolo lols lool loos loot loso loss lost lotl loto lots lott lox- loxo lsso lsts lxxx ollo olos olot olst oolo oooo ooos oost oots oslo osoo osos osso osts oto- otoo otos otso otto otts oxo- oxos oxox oxxo s-os sloo slos slot slst slts soll solo sols solt sool soos soot soso soss sost sotl soto sots soxs sslt ssot ssss sstl ssts stlo stlt stol stoo stos stot stox stss tlos tltx tol- toll tolo tolt tool toos toot toso toss tost tosx toto tots tott tox- toxo toxs toxt tsol tsos tsst tsts ttss tttt xlox xolo xosl xoxo xslt xtol xxxo xxxx