quart uqart qaurt aqurt uaqrt auqrt qurat uqrat qruat rquat urqat ruqat qarut aqrut qraut rqaut arqut raqut uarqt aurqt uraqt ruaqt aruqt rauqt quatr uqatr qautr aqutr uaqtr auqtr qutar uqtar qtuar tquar utqar tuqar qatur aqtur qtaur tqaur atqur taqur uatqr autqr utaqr tuaqr atuqr tauqr qurta uqrta qruta rquta urqta ruqta qutra uqtra qtura tqura utqra tuqra qrtua rqtua qtrua tqrua rtqua trqua urtqa rutqa utrqa turqa rtuqa truqa qartu aqrtu qratu rqatu arqtu raqtu qatru aqtru qtaru tqaru atqru taqru qrtau rqtau qtrau tqrau rtqau trqau artqu ratqu atrqu tarqu rtaqu traqu uartq aurtq uratq ruatq arutq rautq uatrq autrq utarq tuarq aturq taurq urtaq rutaq utraq turaq rtuaq truaq artuq ratuq atruq taruq rtauq trauq
Note: these 'words' (valid or invalid) are all the permutations of the word quart. These words are obtained by scrambling the letters in quart.