equre qeure euqre ueqre quere uqere eqrue qerue erque reque qreue rqeue eurqe uerqe eruqe reuqe ureqe rueqe quree uqree qruee rquee urqee ruqee equer qeuer euqer ueqer queer uqeer eqeur qeeur eequr eequr qeeur eqeur eueqr ueeqr eeuqr eeuqr ueeqr eueqr queer uqeer qeuer equer ueqer euqer eqreu qereu erqeu reqeu qreeu rqeeu eqeru qeeru eeqru eeqru qeeru eqeru erequ reequ eerqu eerqu reequ erequ qreeu rqeeu qereu eqreu reqeu erqeu eureq uereq erueq reueq ureeq rueeq euerq ueerq eeurq eeurq ueerq euerq ereuq reeuq eeruq eeruq reeuq ereuq ureeq rueeq uereq eureq reueq erueq quree uqree qruee rquee urqee ruqee quere uqere qeure equre ueqre euqre qreue rqeue qerue eqrue reque erque ureqe rueqe uerqe eurqe reuqe eruqe
Note: these 'words' (valid or invalid) are all the permutations of the word equre. These words are obtained by scrambling the letters in equre.