quirt uqirt qiurt iqurt uiqrt iuqrt qurit uqrit qruit rquit urqit ruqit qirut iqrut qriut rqiut irqut riqut uirqt iurqt uriqt ruiqt iruqt riuqt quitr uqitr qiutr iqutr uiqtr iuqtr qutir uqtir qtuir tquir utqir tuqir qitur iqtur qtiur tqiur itqur tiqur uitqr iutqr utiqr tuiqr ituqr tiuqr qurti uqrti qruti rquti urqti ruqti qutri uqtri qturi tquri utqri tuqri qrtui rqtui qtrui tqrui rtqui trqui urtqi rutqi utrqi turqi rtuqi truqi qirtu iqrtu qritu rqitu irqtu riqtu qitru iqtru qtiru tqiru itqru tiqru qrtiu rqtiu qtriu tqriu rtqiu trqiu irtqu ritqu itrqu tirqu rtiqu triqu uirtq iurtq uritq ruitq irutq riutq uitrq iutrq utirq tuirq iturq tiurq urtiq rutiq utriq turiq rtuiq truiq irtuq rituq itruq tiruq rtiuq triuq
Note: these 'words' (valid or invalid) are all the permutations of the word quirt. These words are obtained by scrambling the letters in quirt.