troll rtoll torll otrll rotll ortll trlol rtlol tlrol ltrol rltol lrtol tolrl otlrl tlorl ltorl oltrl lotrl roltl orltl rlotl lrotl olrtl lortl troll rtoll torll otrll rotll ortll trlol rtlol tlrol ltrol rltol lrtol tolrl otlrl tlorl ltorl oltrl lotrl roltl orltl rlotl lrotl olrtl lortl trllo rtllo tlrlo ltrlo rltlo lrtlo trllo rtllo tlrlo ltrlo rltlo lrtlo tllro ltlro tllro ltlro lltro lltro rllto lrlto rllto lrlto llrto llrto tollr otllr tlolr ltolr oltlr lotlr tollr otllr tlolr ltolr oltlr lotlr tllor ltlor tllor ltlor lltor lltor olltr loltr olltr loltr llotr llotr rollt orllt rlolt lrolt olrlt lorlt rollt orllt rlolt lrolt olrlt lorlt rllot lrlot rllot lrlot llrot llrot ollrt lolrt ollrt lolrt llort llort
Note: these 'words' (valid or invalid) are all the permutations of the word troll. These words are obtained by scrambling the letters in troll.