llll lloo loll lolo lols lool loor loos loot loro lors loso loss lost lotl loto lotr lots lott lrrr lrst lrts ls-r lsso lssr lsts ltrs ltsr lttr ollo olor olos olot olst oolo oooo ooos oort oost oots orlo oro- oror oros orot orro orrs orso orto orts oslo osoo osor osos osro osso ostr osts oto- otoo otor otos otro otrs otso otto otts rlls roll rolo rolt rool roor roos root roro rort roso ross rost rotl roto rotr rots rott rrrr rsos rssl rsts rtls rtlt rtss rtts s-os sloo slos slot slrs slst slts soll solo solr sols solt sool soor soos soot soro sorr sors sort soso soss sost sotl soto sots sros srtr sslt ssot ssrl ssrs ssss sstl ssts stlo stlt stol stoo stor stos stot stro strs stss sttr tlos tlrs tol- toll tolo tolt tool toor toos toot toro torr tors tort toso toss tost toto totr tots tott troo tros trot trst trtr tsol tsos tssr tsst tsts ttss tttt