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airrreb iarrreb arirreb rairreb irarreb riarreb rirareb irrareb rriareb rriareb irrareb rirareb arirreb rairreb airrreb iarrreb riarreb irarreb arrireb rarireb arrireb rarireb rraireb rraireb airrreb iarrreb arirreb rairreb irarreb riarreb rirareb irrareb rriareb rriareb irrareb rirareb rriraeb rriraeb rirraeb irrraeb rirraeb irrraeb rrriaeb rrriaeb rrriaeb rrriaeb rrriaeb rrriaeb rirraeb irrraeb rriraeb rriraeb irrraeb rirraeb rirraeb irrraeb rriraeb rriraeb irrraeb rirraeb arrerib rarerib arrerib rarerib rraerib rraerib arerrib raerrib aerrrib earrrib rearrib erarrib arerrib raerrib aerrrib earrrib rearrib erarrib rrearib rrearib rerarib errarib rerarib errarib arrreib rarreib arrreib rarreib rrareib rrareib arrreib rarreib arrreib rarreib rrareib rrareib arrreib rarreib arrreib rarreib rrareib rrareib rrraeib rrraeib rrraeib rrraeib rrraeib rrraeib arerrib raerrib aerrrib earrrib rearrib erarrib arrerib rarerib arrerib rarerib rraerib rraerib aerrrib earrrib arerrib raerrib erarrib rearrib rerarib errarib rrearib rrearib errarib rerarib arerrib raerrib aerrrib earrrib rearrib erarrib arrerib rarerib arrerib rarerib rraerib rraerib aerrrib earrrib arerrib raerrib erarrib rearrib rerarib errarib rrearib rrearib errarib rerarib rreraib rreraib rerraib errraib rerraib errraib rrreaib rrreaib rrreaib rrreaib rrreaib rrreaib rerraib errraib rreraib rreraib errraib rerraib rerraib errraib rreraib rreraib errraib rerraib arierrb raierrb airerrb iarerrb riaerrb iraerrb areirrb raeirrb aerirrb earirrb reairrb erairrb aierrrb iaerrrb aeirrrb eairrrb iearrrb eiarrrb riearrb irearrb reiarrb eriarrb ierarrb eirarrb arirerb rairerb airrerb iarrerb riarerb irarerb arrierb rarierb arrierb rarierb rraierb rraierb airrerb iarrerb arirerb rairerb irarerb riarerb riraerb irraerb rriaerb rriaerb irraerb riraerb arerirb raerirb aerrirb earrirb rearirb erarirb arreirb rareirb arreirb rareirb rraeirb rraeirb aerrirb earrirb arerirb raerirb erarirb rearirb rerairb errairb rreairb rreairb errairb rerairb aierrrb iaerrrb aeirrrb eairrrb iearrrb eiarrrb airerrb iarerrb arierrb raierrb iraerrb riaerrb aerirrb earirrb areirrb raeirrb erairrb reairrb ierarrb eirarrb irearrb riearrb eriarrb reiarrb rierarb irerarb reirarb erirarb ierrarb eirrarb rirearb irrearb rriearb rriearb irrearb rirearb reriarb erriarb rreiarb rreiarb erriarb reriarb ierrarb eirrarb irerarb rierarb erirarb reirarb arierrb raierrb airerrb iarerrb riaerrb iraerrb areirrb raeirrb aerirrb earirrb reairrb erairrb aierrrb iaerrrb aeirrrb eairrrb iearrrb eiarrrb riearrb irearrb reiarrb eriarrb ierarrb eirarrb arirerb rairerb airrerb iarrerb riarerb irarerb arrierb rarierb arrierb rarierb rraierb rraierb airrerb iarrerb arirerb rairerb irarerb riarerb riraerb irraerb rriaerb rriaerb irraerb riraerb arerirb raerirb aerrirb earrirb rearirb erarirb arreirb rareirb arreirb rareirb rraeirb rraeirb aerrirb earrirb arerirb raerirb erarirb rearirb rerairb errairb rreairb rreairb errairb rerairb aierrrb iaerrrb aeirrrb eairrrb iearrrb eiarrrb airerrb iarerrb arierrb raierrb iraerrb riaerrb aerirrb earirrb areirrb raeirrb erairrb reairrb ierarrb eirarrb irearrb riearrb eriarrb reiarrb rierarb irerarb reirarb erirarb ierrarb eirrarb rirearb irrearb rriearb rriearb irrearb rirearb reriarb erriarb rreiarb rreiarb erriarb reriarb ierrarb eirrarb irerarb rierarb erirarb reirarb rrierab rrierab rirerab irrerab rirerab irrerab rreirab rreirab rerirab errirab rerirab errirab rierrab irerrab reirrab erirrab ierrrab eirrrab rierrab irerrab reirrab erirrab ierrrab eirrrab rrireab rrireab rirreab irrreab rirreab irrreab rrrieab rrrieab rrrieab rrrieab rrrieab rrrieab rirreab irrreab rrireab rrireab irrreab rirreab rirreab irrreab rrireab rrireab irrreab rirreab rreriab rreriab rerriab errriab rerriab errriab rrreiab rrreiab rrreiab rrreiab rrreiab rrreiab rerriab errriab rreriab rreriab errriab rerriab rerriab errriab rreriab rreriab errriab rerriab rierrab irerrab reirrab erirrab ierrrab eirrrab rirerab irrerab rrierab rrierab irrerab rirerab rerirab errirab rreirab rreirab errirab rerirab ierrrab eirrrab irerrab rierrab erirrab reirrab rierrab irerrab reirrab erirrab ierrrab eirrrab rirerab irrerab rrierab rrierab irrerab rirerab rerirab errirab rreirab rreirab errirab rerirab ierrrab eirrrab irerrab rierrab erirrab reirrab
Note: these 'words' (valid or invalid) are all the permutations of the word barrier. These words are obtained by scrambling the letters in barrier.