metrt emtrt mtert tmert etmrt temrt mertt emrtt mrett rmett ermtt remtt mtret tmret mrtet rmtet trmet rtmet etrmt termt ertmt retmt tremt rtemt mettr emttr mtetr tmetr etmtr temtr mettr emttr mtetr tmetr etmtr temtr mtter tmter mtter tmter ttmer ttmer ettmr tetmr ettmr tetmr ttemr ttemr mertt emrtt mrett rmett ermtt remtt metrt emtrt mtert tmert etmrt temrt mrtet rmtet mtret tmret rtmet trmet ertmt retmt etrmt termt rtemt tremt mtrte tmrte mrtte rmtte trmte rtmte mttre tmtre mttre tmtre ttmre ttmre mrtte rmtte mtrte tmrte rtmte trmte trtme rttme ttrme ttrme rttme trtme etrtm tertm erttm rettm tretm rtetm ettrm tetrm ettrm tetrm tterm tterm erttm rettm etrtm tertm rtetm tretm trtem rttem ttrem ttrem rttem trtem
Note: these 'words' (valid or invalid) are all the permutations of the word metrt. These words are obtained by scrambling the letters in metrt.