pruta rputa purta uprta rupta urpta prtua rptua ptrua tprua rtpua trpua putra uptra ptura tpura utpra tupra rutpa urtpa rtupa trupa utrpa turpa pruat rpuat purat uprat rupat urpat praut rpaut parut aprut raput arput puart upart paurt apurt uaprt auprt ruapt urapt raupt arupt uarpt aurpt prtau rptau ptrau tprau rtpau trpau pratu rpatu partu aprtu raptu arptu ptaru tparu patru aptru tapru atpru rtapu trapu ratpu artpu tarpu atrpu putar uptar ptuar tpuar utpar tupar puatr upatr pautr aputr uaptr auptr ptaur tpaur patur aptur tapur atpur utapr tuapr uatpr autpr taupr atupr rutap urtap rtuap truap utrap turap ruatp uratp rautp arutp uartp aurtp rtaup traup ratup artup tarup atrup utarp tuarp uatrp autrp taurp aturp
Note: these 'words' (valid or invalid) are all the permutations of the word pruta. These words are obtained by scrambling the letters in pruta.