perdy eprdy predy rpedy erpdy repdy pedry epdry pdery dpery edpry depry prdey rpdey pdrey dprey rdpey drpey erdpy redpy edrpy derpy rdepy drepy peryd epryd preyd rpeyd erpyd repyd peyrd epyrd pyerd yperd eyprd yeprd pryed rpyed pyred ypred ryped yrped erypd reypd eyrpd yerpd ryepd yrepd pedyr epdyr pdeyr dpeyr edpyr depyr peydr epydr pyedr ypedr eypdr yepdr pdyer dpyer pyder ypder dyper ydper edypr deypr eydpr yedpr dyepr ydepr prdye rpdye pdrye dprye rdpye drpye pryde rpyde pyrde yprde rypde yrpde pdyre dpyre pydre ypdre dypre ydpre rdype drype rydpe yrdpe dyrpe ydrpe erdyp redyp edryp deryp rdeyp dreyp erydp reydp eyrdp yerdp ryedp yredp edyrp deyrp eydrp yedrp dyerp yderp rdyep dryep rydep yrdep dyrep ydrep
Note: these 'words' (valid or invalid) are all the permutations of the word perdy. These words are obtained by scrambling the letters in perdy.