utacs tuacs uatcs autcs taucs atucs utcas tucas uctas cutas tcuas ctuas uacts aucts ucats cuats acuts cauts tacus atcus tcaus ctaus actus catus utasc tuasc uatsc autsc tausc atusc utsac tusac ustac sutac tsuac stuac uastc austc usatc suatc asutc sautc tasuc atsuc tsauc stauc astuc satuc utcsa tucsa uctsa cutsa tcusa ctusa utsca tusca ustca sutca tsuca stuca ucsta custa uscta sucta csuta scuta tcsua ctsua tscua stcua cstua sctua uacst aucst ucast cuast acust caust uasct ausct usact suact asuct sauct ucsat cusat uscat sucat csuat scuat acsut casut ascut sacut csaut scaut tacsu atcsu tcasu ctasu actsu catsu tascu atscu tsacu stacu astcu satcu tcsau ctsau tscau stcau cstau sctau acstu castu asctu sactu csatu scatu
Note: these 'words' (valid or invalid) are all the permutations of the word utacs. These words are obtained by scrambling the letters in utacs.