maneb amneb mnaeb nmaeb anmeb nameb maenb amenb meanb emanb aemnb eamnb mneab nmeab menab emnab nemab enmab anemb naemb aenmb eanmb neamb enamb manbe amnbe mnabe nmabe anmbe nambe mabne ambne mbane bmane abmne bamne mnbae nmbae mbnae bmnae nbmae bnmae anbme nabme abnme banme nbame bname maebn amebn meabn emabn aembn eambn maben amben mbaen bmaen abmen bamen meban emban mbean bmean ebman beman aebmn eabmn abemn baemn ebamn beamn mneba nmeba menba emnba nemba enmba mnbea nmbea mbnea bmnea nbmea bnmea mebna embna mbena bmena ebmna bemna nebma enbma nbema bnema ebnma benma anebm naebm aenbm eanbm neabm enabm anbem nabem abnem banem nbaem bnaem aebnm eabnm abenm baenm ebanm beanm nebam enbam nbeam bneam ebnam benam
Note: these 'words' (valid or invalid) are all the permutations of the word maneb. These words are obtained by scrambling the letters in maneb.