scqe csqe sqce qsce cqse qcse sceq cseq secq escq cesq ecsq sqec qsec seqc esqc qesc eqsc cqes qces ceqs ecqs qecs eqcs
Note: these 'words' (valid or invalid) are all the permutations of the word scqe. These words are obtained by scrambling the letters in scqe.