yzag zyag yazg ayzg zayg azyg yzga zyga ygza gyza zgya gzya yagz aygz ygaz gyaz agyz gayz zagy azgy zgay gzay agzy gazy
Note: these 'words' (valid or invalid) are all the permutations of the word yzag. These words are obtained by scrambling the letters in yzag.