triac rtiac tirac itrac ritac irtac traic rtaic taric atric ratic artic tiarc itarc tairc atirc iatrc aitrc riatc iratc raitc aritc iartc airtc trica rtica tirca itrca ritca irtca trcia rtcia tcria ctria rctia crtia ticra itcra tcira ctira ictra citra ricta ircta rcita crita icrta cirta traci rtaci tarci atrci ratci artci trcai rtcai tcrai ctrai rctai crtai tacri atcri tcari ctari actri catri racti arcti rcati crati acrti carti tiacr itacr taicr aticr iatcr aitcr ticar itcar tciar ctiar ictar citar tacir atcir tcair ctair actir catir iactr aictr icatr ciatr acitr caitr riact iract raict arict iarct airct ricat ircat rciat criat icrat cirat racit arcit rcait crait acrit carit iacrt aicrt icart ciart acirt cairt
Note: these 'words' (valid or invalid) are all the permutations of the word triac. These words are obtained by scrambling the letters in triac.